Roy Rogers and Trigger: The King of the Cowboys and His Golden Pal Few partnerships in Hollywood history shine as brightly as that of Roy Rogers and his faithful horse, Trigger. Known as the “King of the Cowboys”, Roy Rogers became an icon of Western films, radio, and television throughout the 1940s and 1950s. But it was Trigger, his magnificent palomino stallion, who helped him capture the hearts of millions. --- Who Was Roy Rogers? Roy Rogers, born Leonard Franklin Slye in 1911, rose from humb