In 1946, Republic incorporated animation into its Gene Autry feature film "Sioux City Sue". It turned out well enough for the studio to dabble in animated cartoons. After leaving Warner Bros. in 1946 (reportedly because of angering his peers at the studio's cartoon division for taking credit that was not really his), Bob Clampett approached Republic and wound up directing a single cartoon, "It's a Grand Old Nag", featuring the equine character Charlie Horse. Republic management, however, had second thoughts owing to dwindling profits, and discontinued the series. Clampett took his direction credit under the name "Kilroy". Republic also made another cartoon series in 1949 (this time without Clampett) called "Jerky Journeys", but only four cartoons were made.