How many movies have Fred Burns and George 'Gabby' Hayes acted in together?

They have worked on 33 movies together! Their first movie together was Trailing North (1933) while their highest rated movie together was Red River Valley (1941). They have not worked together since Wagon Tracks West (1943). They are most known for their western films together.

Role
Colorado Jack Breen
Role
Prof. Mortimer 'Gabby' Blackstone