Millard J. “Johnny” Johnson, a decorated Navy officer who retired in 1981 as a rear admiral, died March 12 at a nursing home in Orlando, Fla. He was 76 and had Alzheimer’s disease.

Adm. Johnson was commissioned as an ensign at 19 and served 27 years in the Navy Supply Corps, including early posts in Pensacola, Fla., and Newfoundland, Canada, where he met his future wife. He first came to the Washington area in the early 1960s to help develop the Navy’s nuclear program as a special assistant to Adm. Hyman Rickover. In the early 1970s, he was the supply officer on an aircraft carrier deployed to Vietnam. He was later executive officer of the Naval Supply Center in Charleston, S.C. He then returned to Washington, where he was director of the program control and development division at the Naval Supply Systems Command.

In the late 1970s, he was posted to Mechanicsburg, Pa., as a commanding officer of a fleet material support office. He moved back to Washington in 1979 to finish his career as assistant comptroller of the Navy and commander of the Navy Accounting and Finance Office.

Adm. Johnson’s military decorations included the Legion of Merit for his work on the Navy’s nuclear program, the Bronze Star for his service in Vietnam, two awards of the Meritorious Service Medal, the Joint Service Commendation Medal and the Navy Commendation Medal.

The son of a coal miner, Millard Jerry Johnson was born in Sand Gap, Ky. He graduated from Berea (Ky.) College at 18. During his Navy career, he received a master’s degree in business administration from George Washington University. In 1983, he received a doctorate in logistics, consulting and management from Pacific Western University in California.

He and his wife had lived in Burke since 1975.

He was a member of the American Society of Military Comptrollers and the Supply Corps Alumni Association.

Survivors include his wife of 55 years, Anita Hann Johnson of Burke and Orlando; four children, Barry C.D. Johnson of Orlando, Shawn C.D. Johnson of Winchester, Mass., Quin B. Johnson of Jupiter, Fla., and Karla L.D. Bennett of Hummelstown, Pa.; two brothers; and six grandchildren.

— Emma Brown