Effa Manley owned the Newark Eagles, championship winning Negro Leagues team with her husband Abraham Manley. She was very active in the running of the baseball team.
Effa Manley Papers Newark Public Library
Overmeyer, James. (1993). Effa Manley and the Newark Eagles.
Overmeyer, James. (2020). Queen of the Negro Leagues: Effa Manley and the Newark Eagles.
Luke, Bob. (2011). The first woman in baseball: Effa Manley and the Negro Leagues.