The Unknown Quantity

The Unknown Quantity

Drama | April 14, 1919

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.

The Unknown Quantity

Drama | April 14, 1919

The Unknown Quantity
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.
Producers Vitagraph Company of America
Original title The Unknown Quantity
Directors Thomas R. Mills
Writers G. Marion Burton, O. Henry

Cast

Corinne Griffith

as Mary Boyne

Huntley Gordon

as Dan Kinsolving

Harry Davenport

as Septimus Kinsolving

Jack Ridgeway

as Thomas Boyne

F.R. Buckley

as Peter Kenwitz

Jack McLean

as Sammy Boyne