Dhalmas Otto Wilmore, 52, a retired major in the Air Force who became an engineer program manager with the Naval Air Systems Command, died of a cerebral hemorrhage Oct. 9 at the Bethesda Naval Hospital.

Maj. Wilmore, who lived in Spotsylvania, Va., was born in Memphis. He graduated from Purdue University in 1952 and was commissioned in the Air Force through the Reserve Officers Training Corps. He became a navigator and served at various stations in this country and in Germany.

He left active duty in 1966 and came to the Washington area in 1967. He joined the Naval Air Systems Command as an engineer and also remained in the Air Force Ready Reserves. At the Naval Air Systems Command, he was a volunteer in the Bureau of the Blind Snack Bars.

Maj. Wilmore lived in Arlington until 1975, when he moved to Spotsylvania. He was a member of the International Arabian Horse Association, the Eastern Amateur Arabian Horse Association and the Virginia Arabian Horse Association.

His marriage to the former Eva Harding ended in divorce.

Survivors include his wife, Marie McClurg Wilmore, their daughter, Laura Kathleen Wilmore, and his stepson, Jon F. Mattfeld Jr., all of Spotsylvania; four children by his first marriage, Milton Otto Wilmore of Toledo, Ohio, Diana Ruth Wilmore of Derby, Ind., and Norma Jean and Harold Francis Wilmore, both of Cocoa, Fla., and his mother, Leora Powell Wilmore of Memphis.