Albert C. (Bobby) Ellison, 57, an Arlington County deputy sheriff for 10 years before retiring for reasons of health in 1974, died Sept. 30 in Arlington Hospital. He had cancer.

Mr. Ellison was a native of Catharpin, Prince William County, Va. He served with the Army in Europe during World War II, winning the Purple Heart and two Bronze Star medals. He moved to Washington in 1951, and worked as a bus driver with the AB&W line until 1962. He became a deputy sheriff two years later.

He was a founder of the Arlington chapter of the Fraternal Order of Police, and was a 26-year member and past commander of American Legion Post 139 in Arlington. He received the legion post's National Community Service Award in 1979. Mr. Ellison was a Mason, Shriner, and member of the Veterans of Foreign Wars and Disabled American Veterans.

He lived in Arlington nearly 30 years before moving to Colonial Beach, Va., in 1979. He was a member of Colonial Beach's planning and zoning committee and its rescue squad.

Survivors include his wife, Virginia M., of Colonial Beach; a son, Ronald A., of Mount Airy; a daughter, Lessie A. Theodore of Arlington; a sister, Marie Chamberlain of Woodbridge, and three grandchildren.