You are watching A Cowboy's Mother-in-Law the movie produced in United States of America belongs with duration 0 Min in Category Comedy,Western,. broadcast at streamingjoy.com , by [ The Essanay Film Manufacturing Company ] 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..