found: John Davidson. [Phonodisc] 1969.
found: Contemp. theatre, film, and television:v. 7 (Davidson, John; b. Dec. 13, 1941, Pittsburgh, PA; actor, television host, singer)
found: IMDb, Sept. 25, 2008(John Davidson; b. Dec. 13, 1941, Pittsburgh, Pa.; birth name: John Hamilton Davidson)
found: Wikipedia, June 9, 2017(John Davidson (entertainer); John Hamilton Davidson Sr. (born December 13, 1941) is an American actor, singer, and game show host known for hosting That's Incredible!, Time Machine and Hollywood Squares in the 1980s, and a revival of The $100,000 Pyramid in 1991)