A Cowboy's Mother-in-Law Nellie Blair, the niece of a wealthy ranchman, and an orphan, comes in make her home with her uncle, and shortly after her arrival finds that the whole "Circle A" outfit, every manjack on the place, is in love with her. Details Casts Title A Cowboy's Mother-in-Law Release Date 1910-10-15 Runtime 01 Hours 34 Minutes Genres Comedy Western Production Companies The Essanay Film Manufacturing Company Production Countries United States of America Gilbert M. Anderson... Pete the Coyote... Gladys Field... Nellie Blair... Victor Potel... ... Augustus Carney... Charlie Martin... Harry Todd... ...