After returning to Baltimore, he studied broadcast engineering for two years at the Baltimore Technical School, and graduated there. He taught for two years at the school, then rejected an offer from a radio station because it was night work.
In 1955, he went to work at Beth Steel in Sparrows Point and rose to become a manager in charge of customer service and responsible for shipping and expediting orders for cold rolled sheet and galvanized metal products. He retired in 1992.
He also owned and operated a TV repair business on the side with a partner, family members said.
Mr. Derry enjoyed vacationing in the Thousand Islands in upstate New York and fishing. He was also an avid collector of records from the 1940s and 1950s.
His wife of 60 years, the former Eileen Rothgaber, died in 2013.
He was a member of Sovereign Grace Church, 11620 Crossroads Circle, Middle River, where a celebration of life service will be held at 10:30 a.m. Saturday.
Mr. Derry is survived by two sons, John Derry of Parkville and Jeff Derry of Oxford, Pa.; a daughter, Brenda Jackson, of Phoenix in Baltimore County; and nine grandchildren. Another son, James Derry, died in 2007.