 from January 16, 1955, an episode from the Dennis Day revival series, which aired for a single season. At the time, Day was also still working on Benny's radio show and Jack's television program. Margaret Truman was the only child of former President Harry S. Truman and his wife, Bess, and she indeed had a singing career in the 1940s and 50s. Later, she became a best-selling author of mystery novels and also penned nonfiction, mostly about former residents of the White House.