For senators and representatives who represented defunct parties or switched parties intra-term, only their latest party while in office is reflected. Most states, due to not having long-running deans until the 1900s, have tables only starting from that decade.
Guidelines
editChecklist
edit- Check all dates (Congress sessions, individual terms, deanships, ayds)
- Check seniority (shared seniority, alphabetical precedence, combined House and Senate tenures, causes of departure)
- Check numbered seniority (if death caused seniority to go up independent of list number)
Seniority criteria
edit- Number of consecutive terms (for speed, use seniority date)
- Number of past, non-consecutive terms
- Alphabetical order of surname (if more than two people fulfill same seniority after above criteria, use individual with earliest surname in alphabet)
- For Representatives elected to fill vacancy, seniority is calculated from date of special election. Column-wise (Congress), at-large representatives use the date they were sworn in.
BLANK
editCongress | Dates | Senior senator (Seniority and tenure) (Cause of departure) |
Delegation dean (Combined seniority and tenure) |
House dean (Seniority and tenure) (Cause of departure) |
---|---|---|---|---|
1st | March 4, 1789 – March 4, 1791 | |||
2nd | March 4, 1791 – March 4, 1793 | |||
3rd | March 4, 1793 – March 4, 1795 | |||
4th | March 4, 1795 – March 4, 1797 | |||
5th | March 4, 1797 – March 4, 1799 | |||
6th | March 4, 1799 – March 4, 1801 | |||
7th | March 4, 1801 – March 4, 1803 | |||
8th | March 4, 1803 – March 4, 1805 | |||
9th | March 4, 1805 – March 4, 1807 | |||
10th | March 4, 1807 – March 4, 1809 | |||
11th | March 4, 1809 – March 4, 1811 | |||
12th | March 4, 1811 – March 4, 1813 | |||
13th | March 4, 1813 – March 4, 1815 | |||
14th | March 4, 1815 – March 4, 1817 | |||
15th | March 4, 1817 – March 4, 1819 | |||
16th | March 4, 1819 – March 4, 1821 | |||
17th | March 4, 1821 – March 4, 1823 | |||
18th | March 4, 1823 – March 4, 1825 | |||
19th | March 4, 1825 – March 4, 1827 | |||
20th | March 4, 1827 – March 4, 1829 | |||
21st | March 4, 1829 – March 4, 1831 | |||
22nd | March 4, 1831 – March 4, 1833 | |||
23rd | March 4, 1833 – March 4, 1835 | |||
24th | March 4, 1835 – March 4, 1837 | |||
25th | March 4, 1837 – March 4, 1839 | |||
26th | March 4, 1839 – March 4, 1841 | |||
27th | March 4, 1841 – March 4, 1843 | |||
28th | March 4, 1843 – March 4, 1845 | |||
29th | March 4, 1845 – March 4, 1847 | |||
30th | March 4, 1847 – March 4, 1849 | |||
31st | March 4, 1849 – March 4, 1851 | |||
32nd | March 4, 1851 – March 4, 1853 | |||
33rd | March 4, 1853 – March 4, 1855 | |||
34th | March 4, 1855 – March 4, 1857 | |||
35th | March 4, 1857 – March 4, 1859 | |||
36th | March 4, 1859 – March 4, 1861 | |||
37th | March 4, 1861 – March 4, 1863 | |||
38th | March 4, 1863 – March 4, 1865 | |||
39th | March 4, 1865 – March 4, 1867 | |||
40th | March 4, 1867 – March 4, 1869 | |||
41st | March 4, 1869 – March 4, 1871 | |||
42nd | March 4, 1871 – March 4, 1873 | |||
43rd | March 4, 1873 – March 4, 1875 | |||
44th | March 4, 1875 – March 4, 1877 | |||
45th | March 4, 1877 – March 4, 1879 | |||
46th | March 4, 1879 – March 4, 1881 | |||
47th | March 4, 1881 – March 4, 1883 | |||
48th | March 4, 1883 – March 4, 1885 | |||
49th | March 4, 1885 – March 4, 1887 | |||
50th | March 4, 1887 – March 4, 1889 | |||
51st | March 4, 1889 – March 4, 1891 | |||
52nd | March 4, 1891 – March 4, 1893 | |||
53rd | March 4, 1893 – March 4, 1895 | |||
54th | March 4, 1895 – March 4, 1897 | |||
55th | March 4, 1897 – March 4, 1899 | |||
56th | March 4, 1899 – March 4, 1901 | |||
57th | March 4, 1901 – March 4, 1903 | |||
58th | March 4, 1903 – March 4, 1905 | |||
59th | March 4, 1905 – March 4, 1907 | |||
60th | March 4, 1907 – March 4, 1909 | |||
61st | March 4, 1909 – March 4, 1911 | |||
62nd | March 4, 1911 – March 4, 1913 | |||
63rd | March 4, 1913 – March 4, 1915 | |||
64th | March 4, 1915 – March 4, 1917 | |||
65th | March 4, 1917 – March 4, 1919 | |||
66th | March 4, 1919 – March 4, 1921 | |||
67th | March 4, 1921 – March 4, 1923 | |||
68th | March 4, 1923 – March 4, 1925 | |||
69th | March 4, 1925 – March 4, 1927 | |||
70th | March 4, 1927 – March 4, 1929 | |||
71st | March 4, 1929 – March 4, 1931 | |||
72nd | March 4, 1931 – March 4, 1933 | |||
73rd | March 4, 1933 – January 3, 1935 | |||
74th | January 3, 1935 – January 3, 1937 | |||
75th | January 3, 1937 – January 3, 1939 | |||
76th | January 3, 1939 – January 3, 1941 | |||
77th | January 3, 1941 – January 3, 1943 | |||
78th | January 3, 1943 – January 3, 1945 | |||
79th | January 3, 1945 – January 3, 1947 | |||
80th | January 3, 1947 – January 3, 1949 | |||
81st | January 3, 1949 – January 3, 1951 | |||
82nd | January 3, 1951 – January 3, 1953 | |||
83rd | January 3, 1953 – January 3, 1955 | |||
84th | January 3, 1955 – January 3, 1957 | |||
85th | January 3, 1957 – January 3, 1959 | |||
86th | January 3, 1959 – January 3, 1961 | |||
87th | January 3, 1961 – January 3, 1963 | |||
88th | January 3, 1963 – January 3, 1965 | |||
89th | January 3, 1965 – January 3, 1967 | |||
90th | January 3, 1967 – January 3, 1969 | |||
91st | January 3, 1969 – January 3, 1971 | |||
92nd | January 3, 1971 – January 3, 1973 | |||
93rd | January 3, 1973 – January 3, 1975 | |||
94th | January 3, 1975 – January 3, 1977 | |||
95th | January 3, 1977 – January 3, 1979 | |||
96th | January 3, 1979 – January 3, 1981 | |||
97th | January 3, 1981 – January 3, 1983 | |||
98th | January 3, 1983 – January 3, 1985 | |||
99th | January 3, 1985 – January 3, 1987 | |||
100th | January 3, 1987 – January 3, 1989 | |||
101st | January 3, 1989 – January 3, 1991 | |||
102nd | January 3, 1991 – January 3, 1993 | |||
103rd | January 3, 1993 – January 3, 1995 | |||
104th | January 3, 1995 – January 3, 1997 | |||
105th | January 3, 1997 – January 3, 1999 | |||
106th | January 3, 1999 – January 3, 2001 | |||
107th | January 3, 2001 – January 3, 2003 | |||
108th | January 3, 2003 – January 3, 2005 | |||
109th | January 3, 2005 – January 3, 2007 | |||
110th | January 3, 2007 – January 3, 2009 | |||
111th | January 3, 2009 – January 3, 2011 | |||
112th | January 3, 2011 – January 3, 2013 | |||
113th | January 3, 2013 – January 3, 2015 | |||
114th | January 3, 2015 – January 3, 2017 | |||
115th | January 3, 2017 – January 3, 2019 | |||
116th | January 3, 2019 – January 3, 2021 | |||
117th | January 3, 2021 – January 3, 2023 | |||
118th | January 3, 2023 – present | |||
Congress | Dates | Senior senator (Seniority and tenure) (Cause of departure) |
Delegation dean (Combined seniority and tenure) |
House dean (Seniority and tenure) (Cause of departure) |
Connecticut
editCongress | Dates | Senior senator (Seniority and tenure) (Cause of departure) |
Delegation dean (Combined seniority and tenure) |
House dean (Seniority and tenure) (Cause of departure) |
---|---|---|---|---|
41st | March 4, 1869 – March 4, 1871 | |||
42nd | March 4, 1871 – March 4, 1873 | |||
43rd | March 4, 1873 – March 4, 1875 | |||
44th | March 4, 1875 – March 4, 1877 | |||
45th | March 4, 1877 – March 4, 1879 | |||
46th | March 4, 1879 – March 4, 1881 | |||
47th | March 4, 1881 – March 4, 1883 | |||
48th | March 4, 1883 – March 4, 1885 | |||
49th | March 4, 1885 – March 4, 1887 | |||
50th | March 4, 1887 – March 4, 1889 | |||
51st | March 4, 1889 – March 4, 1891 | |||
52nd | March 4, 1891 – March 4, 1893 | |||
53rd | March 4, 1893 – March 4, 1895 | |||
54th | March 4, 1895 – March 4, 1897 | |||
55th | March 4, 1897 – March 4, 1899 | |||
56th | March 4, 1899 – March 4, 1901 | |||
57th | March 4, 1901 – March 4, 1903 | |||
58th | March 4, 1903 – March 4, 1905 | |||
59th | March 4, 1905 – March 4, 1907 | |||
60th | March 4, 1907 – March 4, 1909 | |||
61st | March 4, 1909 – March 4, 1911 | |||
62nd | March 4, 1911 – March 4, 1913 | |||
63rd | March 4, 1913 – March 4, 1915 | |||
64th | March 4, 1915 – March 4, 1917 | |||
65th | March 4, 1917 – March 4, 1919 | |||
66th | March 4, 1919 – March 4, 1921 | |||
67th | March 4, 1921 – March 4, 1923 | |||
68th | March 4, 1923 – March 4, 1925 | |||
69th | March 4, 1925 – March 4, 1927 | |||
70th | March 4, 1927 – March 4, 1929 | |||
71st | March 4, 1929 – March 4, 1931 | |||
72nd | March 4, 1931 – March 4, 1933 | |||
73rd | March 4, 1933 – January 3, 1935 | |||
74th | January 3, 1935 – January 3, 1937 | |||
75th | January 3, 1937 – January 3, 1939 | |||
76th | January 3, 1939 – January 3, 1941 | |||
77th | January 3, 1941 – January 3, 1943 | |||
78th | January 3, 1943 – January 3, 1945 | |||
79th | January 3, 1945 – January 3, 1947 | |||
80th | January 3, 1947 – January 3, 1949 | |||
81st | January 3, 1949 – January 3, 1951 | |||
82nd | January 3, 1951 – January 3, 1953 | |||
83rd | January 3, 1953 – January 3, 1955 | |||
84th | January 3, 1955 – January 3, 1957 | |||
85th | January 3, 1957 – January 3, 1959 | |||
86th | January 3, 1959 – January 3, 1961 | |||
87th | January 3, 1961 – January 3, 1963 | |||
88th | January 3, 1963 – January 3, 1965 | |||
89th | January 3, 1965 – January 3, 1967 | |||
90th | January 3, 1967 – January 3, 1969 | |||
91st | January 3, 1969 – January 3, 1971 | |||
92nd | January 3, 1971 – January 3, 1973 | |||
93rd | January 3, 1973 – January 3, 1975 | |||
94th | January 3, 1975 – January 3, 1977 | |||
95th | January 3, 1977 – January 3, 1979 | |||
96th | January 3, 1979 – January 3, 1981 | |||
97th | January 3, 1981 – January 3, 1983 | |||
98th | January 3, 1983 – January 3, 1985 | |||
99th | January 3, 1985 – January 3, 1987 | |||
100th | January 3, 1987 – January 3, 1989 | |||
101st | January 3, 1989 – January 3, 1991 | |||
102nd | January 3, 1991 – January 3, 1993 | |||
103rd | January 3, 1993 – January 3, 1995 | |||
104th | January 3, 1995 – January 3, 1997 | |||
105th | January 3, 1997 – January 3, 1999 | |||
106th | January 3, 1999 – January 3, 2001 | |||
107th | January 3, 2001 – January 3, 2003 | |||
108th | January 3, 2003 – January 3, 2005 | |||
109th | January 3, 2005 – January 3, 2007 | |||
110th | January 3, 2007 – January 3, 2009 | |||
111th | January 3, 2009 – January 3, 2011 | |||
112th | January 3, 2011 – January 3, 2013 | |||
113th | January 3, 2013 – January 3, 2015 | |||
114th | January 3, 2015 – January 3, 2017 | |||
115th | January 3, 2017 – January 3, 2019 | |||
116th | January 3, 2019 – January 3, 2021 | |||
117th | January 3, 2021 – January 3, 2023 | |||
118th | January 3, 2023 – present | |||
Congress | Dates | Senior senator (Seniority and tenure) (Cause of departure) |
Delegation dean (Combined seniority and tenure) |
House dean (Seniority and tenure) (Cause of departure) |
Maine
editCongress | Dates | Senior senator (Seniority and tenure) (Cause of departure) |
Delegation dean (Combined seniority and tenure) |
House dean (Seniority and tenure) (Cause of departure) |
---|---|---|---|---|
33rd | March 4, 1853 – March 4, 1855 |
Hannibal Hamlin[A][B] Seniority from June 8, 1848[a] (8 years, 214 days) (elected Maine governor) |
Hamlin (Senate) Seniority from June 8, 1848 |
Thomas J. D. Fuller Seniority from March 4, 1849 (7 years, 364 days) (retired) |
34th | March 4, 1855 – January 7, 1857 | |||
January 7, 1857 – March 4, 1857 |
William P. Fessenden[C][B] Seniority from February 10, 1854[b] (10 years, 142 days) (appointed Secretary of the Treasury) |
Fuller (House) Seniority from March 4, 1849 | ||
35th | March 4, 1857 – March 4, 1859 |
Washburn (House) Seniority from March 4, 1851 |
Israel Washburn Jr. Seniority from March 4, 1851 (9 years, 303 days) (elected Maine governor) | |
36th | March 4, 1859 – January 1, 1861 | |||
January 1, 1861 – March 4, 1861 |
Fessenden (Senate) Seniority from February 10, 1854 |
Freeman H. Morse[D] Seniority from March 4, 1857[c] (3 years, 364 days) (retired) | ||
37th | March 4, 1861 – December 1, 1862 |
No clear dean[d][e] | ||
December 1, 1862 – March 4, 1863 |
Samuel C. Fessenden Seniority from March 4, 1861[f] (1 year, 364 days) (retired) | |||
38th | March 4, 1863 – July 1, 1864 |
Co-deans: Frederick A. Pike, John H. Rice Seniority from March 4, 1861 (5 years, 364 days) (Rice retired) | ||
July 1, 1864 – March 4, 1865 |
Lot M. Morrill Seniority from January 17, 1861[a] (8 years, 45 days) (lost re-election) |
Morrill (Senate) Seniority from January 17, 1861 | ||
39th | March 4, 1865 – March 4, 1867 | |||
40th | March 4, 1867 – March 4, 1869 |
Frederick A. Pike Seniority from March 4, 1861 (7 years, 364 days) (lost renomination) | ||
41st | March 4, 1869 – September 8, 1869 |
William P. Fessenden[E][F] Seniority from March 4, 1865 (4 years, 188 days) (died) |
Blaine (House and Senate) Seniority from March 4, 1863 |
James G. Blaine[G] Seniority from March 4, 1863 (13 years, 128 days) (appointed to Senate) |
September 8, 1869 – March 4, 1871 |
Hannibal Hamlin[E][H] Seniority from March 4, 1869 (11 years, 364 days) (retired) | |||
42nd | March 4, 1871 – March 4, 1873 | |||
43rd | March 4, 1873 – March 4, 1875 | |||
44th | March 4, 1875 – July 10, 1876 | |||
July 10, 1876 – March 4, 1877 |
Eugene Hale Seniority from March 4, 1869 (9 years, 364 days) (lost re-election) | |||
45th | March 4, 1877 – March 4, 1879 | |||
46th | March 4, 1879 – March 4, 1881 |
William P. Frye Seniority from March 4, 1871 (10 years, 13 days) (elected to Senate) | ||
47th | March 4, 1881 – March 5, 1881 |
James G. Blaine[B] Seniority from July 10, 1876[g] (4 years, 238 days) (appointed Secretary of State) | ||
March 5, 1881 – March 17, 1881 |
Eugene Hale[I][B] Seniority from March 4, 1881 (29 years, 364 days) (retired) |
Frye (House and Senate) Seniority from March 4, 1871 | ||
March 17, 1881 – March 4, 1883 |
Co-deans: Stephen Lindsey, Thomas Brackett Reed Seniority from March 4, 1877 (5 years, 364 days) (Lindsey retired) | |||
48th | March 4, 1883 – March 4, 1885 |
Thomas Brackett Reed[J] Seniority from March 4, 1877 (22 years, 184 days) (resigned) | ||
49th | March 4, 1885 – March 4, 1887 | |||
50th | March 4, 1887 – March 4, 1889 | |||
51st | March 4, 1889 – March 4, 1891 | |||
52nd | March 4, 1891 – March 4, 1893 | |||
53rd | March 4, 1893 – March 4, 1895 | |||
54th | March 4, 1895 – March 4, 1897 | |||
55th | March 4, 1897 – March 4, 1899 | |||
56th | March 4, 1899 – September 4, 1899 | |||
September 4, 1899 – March 4, 1901 |
Charles A. Boutelle Seniority from March 4, 1883 (17 years, 364 days) (resigned)[1] | |||
57th | March 4, 1901 – March 4, 1903 |
Edwin C. Burleigh Seniority from June 21, 1897[h] (13 years, 255 days) (lost re-election)[3] | ||
58th | March 4, 1903 – March 4, 1905 | |||
59th | March 4, 1905 – March 4, 1907 | |||
60th | March 4, 1907 – March 4, 1909 | |||
61st | March 4, 1909 – March 4, 1911 | |||
62nd | March 4, 1911 – August 8, 1911 |
William P. Frye[K][B] Seniority from March 18, 1881 (30 years, 143 days) (died) |
Frank E. Guernsey Seniority from November 3, 1908[h] (8 years, 120 days) (ran for Senate)[4] | |
August 8, 1911 – March 4, 1913 |
Charles F. Johnson Seniority from March 4, 1911 (5 years, 364 days) (lost re-election) |
Guernsey (House) Seniority from November 3, 1908 | ||
63rd | March 4, 1913 – March 4, 1915 | |||
64th | March 4, 1915 – March 4, 1917 | |||
65th | March 4, 1917 – March 4, 1919 |
Bert M. Fernald Seniority from September 12, 1916[i] (9 years, 345 days) (died) |
Peters (House) Seniority from September 9, 1913 |
John A. Peters Seniority from September 9, 1913[h] (8 years, 115 days) (appointed district court judge) |
66th | March 4, 1919 – March 4, 1921 | |||
67th | March 4, 1921 – January 2, 1922 | |||
January 2, 1922 – March 4, 1923 |
Fernald (Senate) Seniority from September 12, 1916 |
Co-deans: Ira G. Hersey, Wallace H. White Seniority from March 4, 1917 (11 years, 364 days) (Hersey lost renomination) | ||
68th | March 4, 1923 – March 4, 1925 | |||
69th | March 4, 1925 – August 23, 1926 | |||
August 23, 1926 – March 4, 1927 |
Frederick Hale Seniority from March 4, 1917 (23 years, 305 days) (retired) |
Co-deans: Hale (Senate) Hersey, White (House) Seniority from March 4, 1917 | ||
70th | March 4, 1927 – March 4, 1929 | |||
71st | March 4, 1929 – March 4, 1931 |
Co-deans: Hale (Senate) White[L] (House and Senate) Seniority from March 4, 1917 |
Wallace H. White Seniority from March 4, 1917 (13 years, 364 days) (elected to Senate) | |
72nd | March 4, 1931 – March 4, 1933 |
Carroll L. Beedy Seniority from March 4, 1921 (13 years, 305 days) (lost re-election) | ||
73rd | March 4, 1933 – January 3, 1935 | |||
74th | January 3, 1935 – January 3, 1937 |
Edward C. Moran Jr. Seniority from March 4, 1933 (3 years, 305 days) (retired) | ||
75th | January 3, 1937 – January 3, 1939 |
Owen Brewster Seniority from January 3, 1935 (6 years, 0 days) (elected to Senate) | ||
76th | January 3, 1939 – January 3, 1941 | |||
77th | January 3, 1941 – January 3, 1943 |
Wallace H. White[M][B] Seniority from March 4, 1931 (17 years, 305 days) (retired) |
White (House and Senate) Seniority from March 4, 1917 |
James C. Oliver Seniority from January 3, 1937 (6 years, 0 days) (lost renomination) |
78th | January 3, 1943 – January 3, 1945 |
Margaret Chase Smith Seniority from June 3, 1940[h] (8 years, 214 days) (elected to Senate) | ||
79th | January 3, 1945 – January 3, 1947 | |||
80th | January 3, 1947 – January 3, 1949 | |||
81st | January 3, 1949 – January 3, 1951 |
Owen Brewster[B] Seniority from January 3, 1941 (11 years, 302 days) (resigned) |
Brewster (House and Senate) Seniority from January 3, 1935 |
Frank Fellows Seniority from January 3, 1941 (10 years, 236 days) (died) |
82nd | January 3, 1951 – August 27, 1951 | |||
August 27, 1951 – December 31, 1952 |
Robert Hale Seniority from January 3, 1943 (16 years, 0 days) (lost re-election) | |||
December 31, 1952 – January 3, 1953 |
Margaret Chase Smith[B] Seniority from January 3, 1949 (24 years, 0 days) (lost re-election) |
Smith (House and Senate) Seniority from June 3, 1940 | ||
83rd | January 3, 1953 – January 3, 1955 | |||
84th | January 3, 1955 – January 3, 1957 | |||
85th | January 3, 1957 – January 3, 1959 | |||
86th | January 3, 1959 – January 3, 1961 |
Clifford McIntire Seniority from October 22, 1941[h] (23 years, 73 days) (ran for Senate) | ||
87th | January 3, 1961 – January 3, 1963 | |||
88th | January 3, 1963 – January 3, 1965 | |||
89th | January 3, 1965 – January 3, 1967 |
Stanley R. Tupper Seniority from January 3, 1961 (6 years, 0 days) (retired) | ||
90th | January 3, 1967 – January 3, 1969 |
William Hathaway Seniority from January 3, 1965 (8 years, 0 days) (elected to Senate) | ||
91st | January 3, 1969 – January 3, 1971 | |||
92nd | January 3, 1971 – January 3, 1973 | |||
93rd | January 3, 1973 – January 3, 1975 |
Edmund Muskie Seniority from January 3, 1959 (21 years, 125 days) (appointed Secretary of State) |
Muskie (Senate) Seniority from January 3, 1959 |
Peter Kyros Seniority from January 3, 1967 (8 years, 0 days) (lost re-election) |
94th | January 3, 1975 – January 3, 1977 |
William Cohen Seniority from January 3, 1973 (6 years, 0 days) (elected to Senate) | ||
95th | January 3, 1977 – January 3, 1979 | |||
96th | January 3, 1979 – May 7, 1980 |
David F. Emery Seniority from January 3, 1975 (8 years, 0 days) (ran for Senate) | ||
May 7, 1980 – January 3, 1981 |
William Cohen[B] Seniority from January 3, 1979 (18 years, 0 days) (retired)[j] |
Cohen (House and Senate) Seniority from January 3, 1973 | ||
97th | January 3, 1981 – January 3, 1983 | |||
98th | January 3, 1983 – January 3, 1985 |
Olympia Snowe Seniority from January 3, 1979 (16 years, 0 days) (elected to Senate) | ||
99th | January 3, 1985 – January 3, 1987 | |||
100th | January 3, 1987 – January 3, 1989 | |||
101st | January 3, 1989 – January 3, 1991 | |||
102nd | January 3, 1991 – January 3, 1993 | |||
103rd | January 3, 1993 – January 3, 1995 | |||
104th | January 3, 1995 – January 3, 1997 |
No clear dean[d][k] | ||
105th | January 3, 1997 – January 3, 1999 |
Olympia Snowe[B] Seniority from January 3, 1995 (18 years, 0 days) (retired) |
Snowe (House and Senate) Seniority from January 3, 1979 |
John Baldacci Seniority from January 3, 1995 (8 years, 0 days) (elected Maine governor) |
106th | January 3, 1999 – January 3, 2001 | |||
107th | January 3, 2001 – January 3, 2003 | |||
108th | January 3, 2003 – January 3, 2005 |
Tom Allen Seniority from January 3, 1997 (12 years, 0 days) (ran for Senate) | ||
109th | January 3, 2005 – January 3, 2007 | |||
110th | January 3, 2007 – January 3, 2009 | |||
111th | January 3, 2009 – January 3, 2011 |
Mike Michaud Seniority from January 3, 2003 (12 years, 0 days) (ran for Maine governor) | ||
112th | January 3, 2011 – January 3, 2013 | |||
113th | January 3, 2013 – January 3, 2015 |
Susan Collins Seniority from January 3, 1997 (27 years, 186 days) (Incumbent) |
Collins (Senate) Seniority from January 3, 1997 | |
114th | January 3, 2015 – January 3, 2017 |
Chellie Pingree Seniority from January 3, 2009 (15 years, 186 days) (Incumbent) | ||
115th | January 3, 2017 – January 3, 2019 | |||
116th | January 3, 2019 – January 3, 2021 | |||
117th | January 3, 2021 – January 3, 2023 | |||
118th | January 3, 2023 – present | |||
Congress | Dates | Senior senator (Seniority and tenure) (Cause of departure) |
Delegation dean (Combined seniority and tenure) |
House dean (Seniority and tenure) (Cause of departure) |
Montana
editCongress | Dates | Senior senator (Seniority and tenure) (Cause of departure) |
Delegation dean (Combined seniority and tenure) |
House dean (Seniority and tenure) (Cause of departure) |
---|---|---|---|---|
63rd | March 4, 1913 – March 4, 1915 |
Henry L. Myers Seniority from March 4, 1911 (11 years, 364 days) (retired) |
Myers (Senate) Seniority from March 4, 1911 |
No clear dean[d][l] |
64th | March 4, 1915 – March 4, 1917 | |||
65th | March 4, 1917 – March 4, 1919 |
John M. Evans Seniority from March 4, 1913 (7 years, 364 days) (lost re-election)[5] | ||
66th | March 4, 1919 – March 4, 1921 | |||
67th | March 4, 1921 – March 4, 1923 |
Thomas J. Walsh Seniority from March 4, 1913 (19 years, 304 days) (died) |
Walsh (Senate) Seniority from March 4, 1913 |
Carl W. Riddick Seniority from March 4, 1919 (3 years, 364 days) (ran for Senate) |
68th | March 4, 1923 – March 4, 1925 |
John M. Evans[D] Seniority from March 4, 1923[c] (9 years, 364 days) (lost renomination)[5] | ||
69th | March 4, 1925 – March 4, 1927 | |||
70th | March 4, 1927 – March 4, 1929 | |||
71st | March 4, 1929 – March 4, 1931 | |||
72nd | March 4, 1931 – March 2, 1933 | |||
March 2, 1933 – March 4, 1933 |
Burton K. Wheeler Seniority from March 4, 1923 (23 years, 305 days) (lost renomination) |
Evans (House) Seniority from March 4, 1923[c] | ||
73rd | March 4, 1933 – January 3, 1935 |
Wheeler (Senate) Seniority from March 4, 1923 |
No clear dean[d][m] | |
74th | January 3, 1935 – January 3, 1937 | |||
75th | January 3, 1937 – January 3, 1939 | |||
76th | January 3, 1939 – January 3, 1941 |
James F. O'Connor Seniority from January 3, 1937 (8 years, 12 days) (died) | ||
77th | January 3, 1941 – January 3, 1943 | |||
78th | January 3, 1943 – January 3, 1945 | |||
79th | January 3, 1945 – January 15, 1945 | |||
January 15, 1945 – January 3, 1947 |
Mike Mansfield Seniority from January 3, 1943 (10 years, 0 days) (elected to Senate) | |||
80th | January 3, 1947 – January 3, 1949 |
James E. Murray Seniority from November 7, 1934[i] (26 years, 57 days) (retired) |
Murray (Senate) Seniority from November 7, 1934 | |
81st | January 3, 1949 – January 3, 1951 | |||
82nd | January 3, 1951 – January 3, 1953 | |||
83rd | January 3, 1953 – January 3, 1955 |
Wesley A. D'Ewart Seniority from June 5, 1945[h] (9 years, 212 days) (ran for Senate) | ||
84th | January 3, 1955 – January 3, 1957 |
Lee Metcalf Seniority from January 3, 1953 (8 years, 0 days) (elected to Senate) | ||
85th | January 3, 1957 – January 3, 1959 | |||
86th | January 3, 1959 – January 3, 1961 | |||
87th | January 3, 1961 – January 3, 1963 |
Mike Mansfield[N][B] Seniority from January 3, 1953 (24 years, 0 days) (retired) |
Mansfield (House and Senate) Seniority from January 3, 1943 |
No clear dean[d][n] |
88th | January 3, 1963 – January 3, 1965 | |||
89th | January 3, 1965 – January 3, 1967 | |||
90th | January 3, 1967 – January 3, 1969 | |||
91st | January 3, 1969 – February 27, 1969 | |||
February 27, 1969 – January 3, 1971 |
Arnold Olsen Seniority from January 3, 1961 (10 years, 0 days) (lost re-election) | |||
92nd | January 3, 1971 – January 3, 1973 |
John Melcher Seniority from June 24, 1969[h] (7 years, 193 days) (elected to Senate) | ||
93rd | January 3, 1973 – January 3, 1975 | |||
94th | January 3, 1975 – January 3, 1977 | |||
95th | January 3, 1977 – January 12, 1978 |
Lee Metcalf[B] Seniority from January 3, 1961 (17 years, 9 days) (died) |
Metcalf (House and Senate) Seniority from January 3, 1953 |
Max Baucus Seniority from January 3, 1975 (3 years, 345 days) (appointed to Senate) |
January 12, 1978 – December 14, 1978 |
John Melcher[B] Seniority from January 3, 1977 (12 years, 0 days) (lost re-election) |
Melcher (House and Senate) Seniority from June 24, 1969[h] | ||
December 14, 1978 – January 3, 1979 |
Ron Marlenee Seniority from January 3, 1977 (16 years, 0 days) (lost re-election) | |||
96th | January 3, 1979 – January 3, 1981 | |||
97th | January 3, 1981 – January 3, 1983 | |||
98th | January 3, 1983 – January 3, 1985 | |||
99th | January 3, 1985 – January 3, 1987 | |||
100th | January 3, 1987 – January 3, 1989 | |||
101st | January 3, 1989 – January 3, 1991 |
Max Baucus[B] Seniority from December 15, 1978[g] (35 years, 53 days) (appointed Ambassador to China) |
Baucus (House and Senate) Seniority from January 3, 1975 | |
102nd | January 3, 1991 – January 3, 1993 | |||
103rd | January 3, 1993 – January 3, 1995 |
Pat Williams[O] Seniority from January 3, 1979 (18 years, 0 days) (retired) | ||
104th | January 3, 1995 – January 3, 1997 | |||
105th | January 3, 1997 – January 3, 1999 |
Rick Hill[O] Seniority from January 3, 1997 (4 years, 0 days) (retired) | ||
106th | January 3, 1999 – January 3, 2001 | |||
107th | January 3, 2001 – January 3, 2003 |
Denny Rehberg[O] Seniority from January 3, 2001 (12 years, 0 days) (ran for Senate) | ||
108th | January 3, 2003 – January 3, 2005 | |||
109th | January 3, 2005 – January 3, 2007 | |||
110th | January 3, 2007 – January 3, 2009 | |||
111th | January 3, 2009 – January 3, 2011 | |||
112th | January 3, 2011 – January 3, 2013 | |||
113th | January 3, 2013 – February 6, 2014 |
Steve Daines[O] Seniority from January 3, 2013 (2 years, 0 days) (elected to Senate) | ||
February 6, 2014 – January 3, 2015 |
Jon Tester Seniority from January 3, 2007 (17 years, 186 days) (Incumbent) |
Tester (Senate) Seniority from January 3, 2007 | ||
114th | January 3, 2015 – January 3, 2017 |
Ryan Zinke[O] Seniority from January 3, 2015 (2 years, 57 days) (appointed Secretary of the Interior) | ||
115th | January 3, 2017 – March 1, 2017 | |||
March 1, 2017 – June 21, 2017 |
Vacant | |||
June 21, 2017 – January 3, 2019 |
Greg Gianforte[O] Seniority from May 25, 2017[h] (3 years, 223 days) (elected Montana governor) | |||
116th | January 3, 2019 – January 3, 2021 | |||
117th | January 3, 2021 – January 3, 2023 |
Matt Rosendale[P] Seniority from January 3, 2021 (3 years, 186 days) (Incumbent) | ||
118th | January 3, 2023 – present | |||
Congress | Dates | Senior senator (Seniority and tenure) (Cause of departure) |
Delegation dean (Combined seniority and tenure) |
House dean (Seniority and tenure) (Cause of departure) |
South Dakota
editCongress | Dates | Senior senator (Seniority and tenure) (Cause of departure) |
Delegation dean (Combined seniority and tenure) |
House dean (Seniority and tenure) (Cause of departure) |
---|---|---|---|---|
51st | November 2, 1889 – March 4, 1891 | |||
52nd | March 4, 1891 – March 4, 1893 | |||
53rd | March 4, 1893 – March 4, 1895 | |||
54th | March 4, 1895 – March 4, 1897 | |||
55th | March 4, 1897 – March 4, 1899 | |||
56th | March 4, 1899 – March 4, 1901 | |||
57th | March 4, 1901 – March 4, 1903 | |||
58th | March 4, 1903 – March 4, 1905 | |||
59th | March 4, 1905 – March 4, 1907 | |||
60th | March 4, 1907 – March 4, 1909 | |||
61st | March 4, 1909 – March 4, 1911 | |||
62nd | March 4, 1911 – March 4, 1913 | |||
63rd | March 4, 1913 – March 4, 1915 | |||
64th | March 4, 1915 – March 4, 1917 | |||
65th | March 4, 1917 – March 4, 1919 | |||
66th | March 4, 1919 – March 4, 1921 | |||
67th | March 4, 1921 – March 4, 1923 | |||
68th | March 4, 1923 – March 4, 1925 | |||
69th | March 4, 1925 – March 4, 1927 | |||
70th | March 4, 1927 – March 4, 1929 | |||
71st | March 4, 1929 – March 4, 1931 | |||
72nd | March 4, 1931 – March 4, 1933 | |||
73rd | March 4, 1933 – January 3, 1935 | |||
74th | January 3, 1935 – January 3, 1937 | |||
75th | January 3, 1937 – January 3, 1939 | |||
76th | January 3, 1939 – January 3, 1941 | |||
77th | January 3, 1941 – January 3, 1943 | |||
78th | January 3, 1943 – January 3, 1945 | |||
79th | January 3, 1945 – January 3, 1947 | |||
80th | January 3, 1947 – January 3, 1949 | |||
81st | January 3, 1949 – January 3, 1951 | |||
82nd | January 3, 1951 – January 3, 1953 | |||
83rd | January 3, 1953 – January 3, 1955 | |||
84th | January 3, 1955 – January 3, 1957 | |||
85th | January 3, 1957 – January 3, 1959 | |||
86th | January 3, 1959 – January 3, 1961 | |||
87th | January 3, 1961 – January 3, 1963 | |||
88th | January 3, 1963 – January 3, 1965 | |||
89th | January 3, 1965 – January 3, 1967 | |||
90th | January 3, 1967 – January 3, 1969 | |||
91st | January 3, 1969 – January 3, 1971 | |||
92nd | January 3, 1971 – January 3, 1973 | |||
93rd | January 3, 1973 – January 3, 1975 | |||
94th | January 3, 1975 – January 3, 1977 | |||
95th | January 3, 1977 – January 3, 1979 | |||
96th | January 3, 1979 – January 3, 1981 | |||
97th | January 3, 1981 – January 3, 1983 | |||
98th | January 3, 1983 – January 3, 1985 | |||
99th | January 3, 1985 – January 3, 1987 | |||
100th | January 3, 1987 – January 3, 1989 | |||
101st | January 3, 1989 – January 3, 1991 | |||
102nd | January 3, 1991 – January 3, 1993 | |||
103rd | January 3, 1993 – January 3, 1995 | |||
104th | January 3, 1995 – January 3, 1997 | |||
105th | January 3, 1997 – January 3, 1999 | |||
106th | January 3, 1999 – January 3, 2001 | |||
107th | January 3, 2001 – January 3, 2003 | |||
108th | January 3, 2003 – January 3, 2005 | |||
109th | January 3, 2005 – January 3, 2007 | |||
110th | January 3, 2007 – January 3, 2009 | |||
111th | January 3, 2009 – January 3, 2011 | |||
112th | January 3, 2011 – January 3, 2013 | |||
113th | January 3, 2013 – January 3, 2015 | |||
114th | January 3, 2015 – January 3, 2017 | |||
115th | January 3, 2017 – January 3, 2019 | |||
116th | January 3, 2019 – January 3, 2021 | |||
117th | January 3, 2021 – January 3, 2023 | |||
118th | January 3, 2023 – present | |||
Congress | Dates | Senior senator (Seniority and tenure) (Cause of departure) |
Delegation dean (Combined seniority and tenure) |
House dean (Seniority and tenure) (Cause of departure) |
References
edit- ^ "BOUTELLE, Charles Addison (1839 – 1901)". Biographical Directory of the United States Congress. Retrieved July 5, 2024.
- ^ a b "Chapter 7 § 2. Seniority and Derivative Rights". Deschler's Precedents, Volume 2 (PDF). U.S. Government Publishing Office. January 1, 1994. p. 670. Retrieved November 5, 2023.
- ^ "BURLEIGH, Edwin Chick (1843 – 1916)". Biographical Directory of the United States Congress. Retrieved July 5, 2024.
- ^ "GUERNSEY, Frank Edward (1866 – 1927)". Biographical Directory of the United States Congress. Retrieved July 5, 2024.
- ^ a b "EVANS, John Morgan (1863 – 1946)". Biographical Directory of the United States Congress. Retrieved July 2, 2024.
Footnotes (positional)
edit- ^ Democrat until 1856
- ^ a b c d e f g h i j k l m n Senator who previously served in the House of Representatives
- ^ Opposition until 1860
- ^ a b Previously served non-consecutive term(s) in the House
- ^ a b Second time
- ^ Previously served non-consecutive term(s) in the Senate
- ^ Speaker of the House and House Republican Leader from 1869 to 1875
- ^ Former Vice President (ex officio President of the Senate)
- ^ Senate Republican Leader (de facto) from 1908 to 1911
- ^ Speaker of the House and House Republican Leader from 1889 to 1891, 1895 to 1899
- ^ President pro tempore from 1896 to 1911
- ^ as junior senator
- ^ Senate Republican Leader from 1944 to 1949
- ^ Senate Democratic Leader from 1961 to 1977
- ^ a b c d e f Sole representative (at-large district)
- ^ Sole representative (at-large district) until redistricting in 2022 House elections
Footnotes (seniority)
edit- ^ a b Senator elected by state legislature intra-term prior to ratification of Seventeenth Amendment; seniority calculated from election date (if different from date the seat was filled)
- ^ Elected late
- ^ a b c Shares seniority date with other officeholder(s); credited as sole dean by past non-consecutive terms in Congress
- ^ a b c d e Preceding elections involved turnover of all sitting incumbents; incoming officeholders share a seniority date with no distinguishing aspects
- ^ All newly-seated members shared seniority until T. A. D. Fessenden was elected on December 1, 1862
- ^ Shares seniority date with more than two other Representatives (thus unable to count as co-deans); credited as sole dean due to surname coming first alphabetically
- ^ a b Senator appointed to fill intra-term vacancy; seniority calculated from date of appointment
- ^ a b c d e f g h i Representative elected to fill vacancy; seniority calculated from date of special election (if different from date the seat was filled)[2] Cite error: The named reference "housevacancy" was defined multiple times with different content (see the help page).
- ^ a b Senator elected to fill intra-term vacancy after ratification of the Seventeenth Amendment; seniority calculated from date the individual assumed office
- ^ Subsequently appointed as Secretary of Defense, effective January 24, 1997; retirement unrelated to assumption of new office
- ^ John Baldacci shared seniority with James B. Longley Jr. until January 3, 1997
- ^ John M. Evans shared seniority with Tom Stout until March 4, 1917
- ^ Roy E. Ayers and Joseph P. Monaghan shared seniority until January 3, 1937; James F. O'Connor shared seniority with Jerry J. O'Connell until January 3, 1939
- ^ Arnold Olsen shared seniority with James F. Battin until February 27, 1969
Bibliography
edit- Biographical Directory of the United States Congress (1774 – 2005) (PDF), Washington, D.C.: U.S. Government Printing Office, 2005, retrieved November 12, 2023