Frank McDonald

"Roy plays himself--who enlists his cowboy movie star friends to help Dale Evans keep the circus she inherited from her father"--Container.

My pal Trigger tells how Roy Rogers obtained his magnificent horse Trigger and begins with horse trader Roy Rogers as he prepares to breed his best mare with his best friend's Palomino stallion. King of the Cowboys has Roy Rogers playing himself, a rodeo star, assigned by the governor to investigate a series of warehouse bombings in Texas during World War II.