Mary E. Sawyer (c. 1846–1902), better known as Mollie Monroe, was an American old west woman who was known for crossdressing and for her liaisons with multiple men.
Monroe then swore to avenge his death, crossing virtually every city from Utah to northern Mexico.
Despite her addictions, Monroe enjoyed helping needy people, such as prostitutes, lone women and their children.
Mollie Monroe was despised by most of Prescott's high society women, for what they viewed as "manly manners" and, as a popular publication of the time said, "morals that are dissolute".
In 1877, she was found wandering across the streets of Peeples Valley by a policeman named Ed Bowers.
Mollie Monroe's times at the California asylum did not go without controversy: she tried burning the building once, causing her to be sent to San Quentin jail.