Sophie Treadwell (October 3, 1885 – February 20, 1970), was a leading American playwright and journalist of the first half of the 20th century. Among her prominent works are Machinal (French for mechanical, automatic, or involuntary) and Intimations For Saxophone. As a journalist, she conducted an exclusive interview with Pancho Villa for the New York Tribune in 1921. She was also an actress and was mentored by renowned Polish actress Helena Modjeska. The majority of Treadwell's works are stored at the University of Arizona Library Special Collections and the rest at The Billy Rose Theatre Collection at the New York Public Library. The rights to them are owned by the Roman Catholic Church of the Diocese of Tucson: A Corporation Sole. "Broadway's Bravest Woman: Selected Writings of Sophie Treadwell" published by Southern Illinois University Press, Carbondale (2006)
The Right Man (1908)
An Outcast at the Christian Door (serial) (1914)
An Unwritten Chapter (1915) (stage adaptation of serial How I Got My Husband and How I Lost Him)
O Nightingale (1925)
Machinal (1928) (also titled The Life Machine in the London premiere)
Ladies Leave (1929)
Intimations For Saxophone (1934)
Plumes in the Dust (1936)
Hope for a Harvest (1941)
One Fierce Hour and Sweet (novel) (1959)
Woman with Lilies (1967)
Treadwell's play Machinal was inspired by the life and execution of convicted murderess Ruth Snyder.
Clark Gable was the lead male actor in an early Broadway production of Machinal.