1953
as Rex's Horse
1952
as Koko - Rex's Horse
as Koko
as Koko, Rex's Horse (as Koko the Miracle Horse of the Movies)
1940
1951
as Koko, Rex Allen's Horse (as Koko the Miracle Horse of the Movies)
1954
as Miracle Horse of the Movies
1950
as Rex Allen's Horse (as The Miracle Horse of the Movies)
