When Shamus Culhane took over Paramount's animation studio he tried out a bunch of new characters, none of which went anywhere. Among those are Sir Blur (basically Mr. Magoo in medieval setting), Hard Hat with Fall Guy (appeared in Halt Who Grows There? and A Bridge Grows In Brooklyn), and Roscoe and Buddy-Boy (from Think or Sink and Forget Me Nuts)
Another one of those characters is Geronimo. He was an Indian character paired with his son, Little Feather. They didn't make the cut, too, and only appeared in two shorts: Geronimo and Son (1966) and The Squaw-Path (1967). Below is the second and last short in its entirety.
Not the strongest from this era, but it's rare, and that's good enough for me.