found: His Roy Rogers' album of cowboy songs, c1941.
found: Katz, E. Film encyc., 1979 (Rogers, Roy; actor, singer; b. Leonard Slye on Nov. 5, 1911, in Cincinnati; changed his name to Dick Weston and formed a singing group, the Sons of the Pioneers)
found: The old homestead [MP] 1935: credits (the players, Len Sly)
found: Morris, G. Roy Rogers, king of the cowboys, 1994: CIP galley (b. 11/5/11)
found: Tel. call to pub., 8/25/93 (info. from Rogers family: 11/5/11 is actual b. date of R. Rogers)
found: Washington post, July 7, 1998: obit. (Roy Rogers, b. Leonard Slye Nov. 5, 1911 in Cincinnati; d. July 6, 1998, in Apple Valley, Calif. Happy trails ... )