Joe Carstairs, Part 1

Marion Carstairs, who preferred the name Joe, was an early 20th-century heiress who bucked traditional gender roles and for a time, hid her wealth from even her closest friends. She also became a very successful speedboat racer.

Joe Carstairs with her engineer Joe Harris in the cockpit of her speedboat, Estelle IV, May 29, 1930. Photo by Douglas Miller/Topical Press Agency/Getty Images