Poster of The Unknown Quantity

The Unknown Quantity

Plot: 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
Release Date: Monday, April 14 1919
105 years ago
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Cast

Portrait of Corinne GriffithCorinne Griffith
Corinne Griffith was
24 in The Unknown Quantity
as 'Mary Boyne'.
Wed, Nov 21 1894 –
Fri, Jul 13 1979
Portrait of Huntley GordonHuntley Gordon
Huntley Gordon was
31 in The Unknown Quantity
as 'Dan Kinsolving'.
Sat, Oct 08 1887 –
Fri, Dec 07 1956
Portrait of Harry DavenportHarry Davenport
Harry Davenport was
53 in The Unknown Quantity
as 'Septimus Kinsolving'.
Thu, Jan 18 1866 –
Tue, Aug 09 1949
Portrait of Jack RidgewayJack Ridgeway
Jack Ridgeway was
>> in The Unknown Quantity
as 'Thomas Boyne'.
Unknown Birthday
Portrait of F.R. BuckleyF.R. Buckley
F.R. Buckley was
>> in The Unknown Quantity
as 'Peter Kenwitz'.
Unknown Birthday
Portrait of Jack McLeanJack McLean
Jack McLean was
>> in The Unknown Quantity
as 'Sammy Boyne'.
Unknown Birthday

Crew

Portrait of Thomas R. MillsThomas R. Mills
Director
Thomas R. Mills was
40 in The Unknown Quantity
Thu, Jun 27 1878 –
Sun, Nov 29 1953
Portrait of G. Marion BurtonG. Marion Burton
Writer
G. Marion Burton was
>> in The Unknown Quantity
Unknown Birthday
Portrait of O. HenryO. Henry
Story
O. Henry would have been no older than
47 in The Unknown Quantity
Thu, Sep 11 1862 –
Sun, Jun 05 1910