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.
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Cast
6 people
Corinne Griffith
Mary Boyne
Also in
The Divine Lady
The Garden of Eden
Huntley Gordon
Dan Kinsolving
Also in
Murder by Television
Mr. Wong in Chinatown
Harry Davenport
Septimus Kinsolving
Known for
Meet Me in St. Louis
Foreign Correspondent
Jack McLean
Sammy Boyne
Also in
Moral Suicide
Mrs. Wiggs of the Cabbage Patch
Jack Ridgeway
Thomas Boyne
Also in
The Copperhead
Little Italy
F.R. Buckley
Peter Kenwitz
Also in
The Undercurrent
Thomas R. Mills Director · G. Marion Burton Writer O. Henry Story
United States release April 14, 1919 · Produced in United States
Production
Vitagraph Company of America
Production
United States
Produced in
Languages
Original language
English
Spoken on screen
No dialogue
Release dates
United States · April 14, 1919
Theatrical
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