Mary Evelyn "Billie" Frechette (September 15, 1907 – January 13, 1969) was an American woman known for her personal relationship with the bank robber John Dillinger in the early 1930s.

She married and returned to the Menominee Indian Reservation, where she was born, for a quieter life in her later decades.

Mary Evelyn ("Billie") Frechette was born in Neopit, Wisconsin, on the Menominee Indian Reservation.

[2] On April 24, 1928, she gave birth to her only child, William Edward Frechette, while residing in an unwed mother's home in Chicago.

Spark was sentenced, with two others, on July 20, 1932, to a 15-year term at Leavenworth for three counts of robbery of postal substations in drug stores.

He looked after me and bought me all kinds of jewelry and cars and pets, and we went places and saw things, and he gave me everything a girl wants.