Retired Army Col. Claiborne Alexander Duval, 85, former commander of the U.S. Army Reserves in Maryland and a federal economist, died Sept. 1 in Annapolis.

He lived in Southdown Shores, a development just off the South River in Edgewater, Md., which he had helped develop, starting in 1939.

Born in Houma, La., Col. Duval was a graduate of Louisiana State Univesity, where he was captain of the football team. He was commissioned in the Army in World War I and served with the field artillery in Italy and France. He remained in the reserves after the war.

Col. Duval taught economics in the early 1930s at the University of Texas, where he received a doctoral degree. He came to Washington about 1935 to join the staff of the Federal Power Commission.

He was recalled to active duty in World War II, seeing duty with the Coast Artillery and then the Transport Command, taking troops into Europe and the Pacific.

In the late 1940s, Col. Duval taught at the University of North Carolina. He then returned here, where he was an economist with the Agriculture Department, retiring about 1955.

He was commanding officer of the Army Reserves in Maryland after the war.

He is survived by his wife, Hazel, of the home; two sons, Claiborne A. Jr., of Beaumont, Tex., and Stewart, of Edgewater; two daughters, Betty Burton, of Towson, and Dolores Van Hemert, of Indianapolis; a sister, Jean Duval, of Arizon; a brother, Charles, of Austin, Tex., 14 grandchildren and nine great-grandchildren.