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Costello, Mary Kathleen

Born 1968 in Bristol, PA

Federal Judicial Service:
Judge, U.S. District Court for the Eastern District of Pennsylvania
Nominated by Joseph R. Biden on June 13, 2024, to a seat vacated by Cynthia M. Rufe. Confirmed by the Senate on September 17, 2024, and received commission on September 19, 2024.

Other Federal Judicial Service:
U.S. Magistrate Judge, U.S. District Court for the Eastern District of Pennsylvania, 2024

Education:
Temple University, B.A., 1998
Temple University James E. Beasley School of Law, J.D., 2001

Professional Career:

U.S. Air Force staff sergeant, 1986-1994
Private practice, Philadelphia, Pennsylvania, 2001-2008
Assistant U.S. attorney, Eastern District of Pennsylvania, 2008-2024