How many movies have George H. Plympton and Horace Murphy collaborated on?

They have worked on 11 movies together! Their first movie together was The Crooked Trail (1936) while their highest rated movie together was The Oregon Trail (1939). They have not worked together since The Oregon Trail (1939). They are most known for their western films together.

Crew
Story
Role
Missouri Bill, Printer's Devil
Crew
Adaptation