Skate surfaced at the North Pole on 17 March 1959 to commit the ashes of the famed explorer Sir Hubert Wilkins to the Arctic waste.

[3] After the end of World War II, Calvert spent three years at the Submarine School as an instructor in the Torpedo Data Computer.

He was assigned to serve as executive officer on USS Charr, winning a battle efficiency pennant in both of his years of service on the ship.

[3] After training by the Atomic Energy Commission, Calvert was assigned to USS Skate, the Navy's third nuclear-powered submarine and the first to be designed for assembly line construction rather than as a one-off prototype.

He was named as superintendent of the United States Naval Academy in 1968, where he introduced 20 different majors to midshipmen to replace a standardized curriculum of military courses that had previously been taken there.

[2] Calvert died at age 88 on June 3, 2009, at his home in Bryn Mawr, Pennsylvania due to heart failure.