See [1]. All images given in extlinks are provably PD-US, either because the LoC says so, or because they were published in Newcomb, Blackwood: Analyzing Character, 1922.
- James H. Collins
- Richard Burton - No article about this author.
- Henry Ford
- Hugo de Vries
- Henry Van Dyke
- Elihu Root [2] [3] [4] [5] [6] [7] [8] [9] [10] (all LoC)
- Beverly T. Galloway
- Henry Ward Beecher [11] [12] [13] [14] [15] (all LoC)
- Richard Mansfield [16] (Gutenberg)
- A.L. Cutting
- Harland B. Howe
- Melville Fuller
- Horace H. Lurton [17] (Gutenberg)
- Frank A. Vanderlip
- William H. Burr
- Joseph P. Folk
- John Wesley Gaines
- Nelson W. Aldrich [18] (LoC)
- Joseph Walker no article; he's mentioned as "The honourable" in the book. Supreme Court Judge?
- Lawrence Vest Stephens Governor of Missouri
- Oscar Underwood [19] [20] [21] [22] (all LoC)
- Victor Murdock
- George W. Goethals [23] [24] [25] (all LoC)
- Robert C. Ogden
- Frank E. Beatty
- W. Nelson Edelsten
- William Lloyd Garrison
- Samuel Rea
- Lon Wescott Beck
- Sydney Williams
- Edgar Allan Poe
- Samuel Taylor Coleridge
- Thomas De Quincy
- Reginald D. Barry
- Edwin Reynolds
- V. Stefansson
- Edward De Reszke
From [26]:
Henry Albert Pegram (1862 - 1937), British sculptor