A copyright search for periodicals renewals was done for the years 1975 and 1976. There was no renewal of copyrights for Best Songs. There's no evidence of any claim on this material.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.
{{Information |Description=Photo of Jo Stafford from the cover of the July 1948 issue of ''Best Songs'' magazine. the magazine published the lyrics to the popular songs of the day. |Source=[http://www.ebay.com/itm/BEST-SONGS-1948-Lyric-Songbook-JO-STA...