How many movies have Dell Henderson and Sylvia Ashton acted in together?

They have worked on 4 movies together! Their first movie together was When the Fire-Bells Rang (1912) while their highest rated movie together was Intolerance: Love's Struggle Throughout the Ages (1916). They have not worked together since Intolerance: Love's Struggle Throughout the Ages (1916). They are most known for their comedy films together.