The Unknown Quantity

1919
The Unknown Quantity
5.5| 0h30m| NR| en| Drama
Storyline

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.

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Producted By

Vitagraph Company of America

The Unknown Quantity Trailers,Teasers and Images

  • The Unknown Quantity Cast
Corinne Griffith as Mary Boyne
Huntley Gordon as Dan Kinsolving
Harry Davenport as Septimus Kinsolving
Jack McLean as Sammy Boyne