John Costello graduated from the U.S. Coast Guard Academy, New London, Connecticut, Class of 1952. He retired as a U.S. Coast Guard Vice Admiral in 1988.

Buried:
,
Cemetery:
John Costello graduated from the U.S. Coast Guard Academy, New London, Connecticut, Class of 1952. He retired as a U.S. Coast Guard Vice Admiral in 1988.



(Citation Needed) – SYNOPSIS: Rear Admiral John D. Costello, United States Coast Guard, was awarded a Gold Star in lieu of a Second Award of the Legion of Merit for exceptionally meritorious conduct in the performance of outstanding services to the Government of the United States.

(Citation Needed) – SYNOPSIS: Rear Admiral John D. Costello, United States Coast Guard, was awarded the Legion of Merit for exceptionally meritorious conduct in the performance of outstanding services to the Government of the United States.