During World War Two she let her beard grow and started working in circus sideshows. She married twice. Her first husband died in the war, and the second died in a road accident. However the demand for bearded ladies had passed, and in the mid-1960s she made only $50 a week.
According to her last manager, she quit the sideshow business, became a man, and he worked as an accountant.
- Mark Hartzman. “Stella Macgregor” American Sideshow: An Encyclopedia of History’s Most Wondrous and Curiously Strange Performers. Jeremy P. Tarcher/Penguin. 2006: 184-5.
This is the only case that I have heard of where a bearded lady later becomes a man.
Unfortunately, the manager did not tell Hartzman whether MacGregor's change was aided by hormones and surgery or not.