Eagan and his wife, the former Mary Conway, immigrated to the United States before 1900 and spent time in St Louis, Missouri and Scranton, Pennsylvania before coming to Birmingham and joining the police force in 1890. He resided at 1108 11th Street North.
When Mayor Nathaniel Barrett took office on the True Americans' white supremacist ticket, his first official act was to demote Eagan, the city's highest-ranking Catholic official, to patrolman and promote Chief of Detectives Thomas Shirley in his place. Rather than accept the demotion, Eagan tendered his resignation.
|Chief of Birmingham Police Department
- The Book of Birmingham and Alabama (1914) Birmingham: The Birmingham Ledger
- Davies, Sharon (2009) Rising Road:A True Tale of Love, Race, and Religion in America. New York, New York: Oxford University Press ISBN 0195379799