
The Unknown Quantity (1919)
0h 50m | PG-13
Mary Boyne, who made shirts at four dollars a week, had no place for love in her life - only despair and hate for the son of the man who had plunged her family into deepest distress. Peter Kenwitz loved Mary, but because he was a mathematician and a pessimist by trade, his love was as hopeless as her chance for happiness.
Director: Thomas R. Mills
Studio: Vitagraph Company of America
Genre: Drama
Video: 720p
Cast

Corinne Griffith
as Mary Boyne

Huntley Gordon
as Dan Kinsolving

Harry Davenport
as Septimus Kinsolving

Jack McLean
as Sammy Boyne

Jack Ridgeway
as Thomas Boyne

F.R. Buckley
as Peter Kenwitz