How many movies have Katherine Yorke and William H. O'Brien acted in together?

They have worked on 3 movies together! Their first movie together was One Night in the Tropics (1940) while their highest rated movie together was Two Sisters from Boston (1946). They have not worked together since Two Sisters from Boston (1946). They are most known for their music films together.

Role
Flirt (uncredited)
Role
Recording Lab Assistant (uncredited)
Role
Nightclub patron (uncredited)
Role
Country Club Waiter (uncredited)
Role
Amused woman (uncredited)
Role
Joe, Club Roscoe Waiter (uncredited)