How many movies have Allen Holubar and Lois Alexander collaborated on?

They have worked on 1 movie together! Their first movie together was 20,000 Leagues Under the Sea (1916) and was their highest rated movie together. They have not worked together since 20,000 Leagues Under the Sea (1916).

Role
Captain Nemo, also known as Prince Daaker
Role
Prince Daaker's daughter, as a child