William H. Hill, a statistician and information systems specialist who worked more than 30 years for the Department of the Navy, died Jan. 27 at the Residences at Thomas Circle retirement community in Washington. He was 97.

The cause was pneumonia, said his daughter, Diahann Hill.

Mr. Hill began his Washington career in 1941 with the old Federal Works Agency. In 1947, he became a statistician for the Navy’s Bureau of Aeronautics.

For the next 32 years, he worked in several civilian units with the Navy Department and retired from the Naval Sea Systems Command in 1979.

William Henry Hill was born in Sargent, Neb., and graduated from the University of Wyoming in 1940. During World War II, he served with the Army in Europe, North Africa and the Middle East.

He was a member of Unitarian Universalist Church in Arlington County.

His marriages to the former Anna Marie Eykin and Mary Catherine Bresnahan ended in divorce.

Survivors include four children from his first marriage, Jerry Hill of New Smyrna Beach, Fla., Kent Hill of Shaker Heights, Ohio, Mark Hill of Lively, Va., and Diahann Hill of Washington; six grandchildren; and six great-grandchildren.

— Bart Barnes