Born in Philadelphia, Pennsylvania, Castagna served in the United States Air Force from 1943 to 1945.

[1] United States President Jimmy Carter nominated Castagna to the United States District Court for the Middle District of Florida on June 5, 1979, to a new seat created by 92 Stat.

Confirmed by the Senate on July 23, 1979, and received commission a day later.

Castagna assumed senior status on June 29, 1992.

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