613 – Green Otter?

A panel from World's Finest #82, March 1956
A panel from World’s Finest #82, March 1956

In World’s Finest #82 (March 1956), Green Arrow’s relates his origin to a reporter, explaining that he was raised in the west and that Little Otter, a childhood friend of Sioux origin, was the first one who taught him to shoot arrows. This origin tale is counter to any others presented so I would call this non-canon.