How many movies have Charles E. Sellier Jr. and S.S. Schweitzer collaborated on?

They have worked on 3 movies together! Their first movie together was Donner Pass: The Road to Survival (1978) while their highest rated movie together was The Deerslayer (1978). They have not worked together since The Adventures of Nellie Bly (1981). They are most known for their tv movie films together.