The Unknown Quantity 1919
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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.
- Released : 1919-04-14
- Runtime : 50 minutes
- Genre : Drama
- Stars : Corinne Griffith, Huntley Gordon, Harry Davenport, Jack McLean, Jack Ridgeway
- Director : Thomas R. Mills, O. Henry, G. Marion Burton
