Marion H. Duncan, 81, a former missionary and retired Army intelligence employee, died Jan. 30 at the Fahrney-Keedy Memorial Home for the Aged in Boonsboro, Md.

He had served with Army intelligence here from 1942 until retiring in about 1965. During that period he had lived in Alexandria except for tours of duty in Japan and Hong Kong.

Born in Celina, Ohio, Mr. Duncan served in France with the Army in World War I, and later graduated from Hiram College in Ohio.

He was ordained a minister in the Church of Christ (Disciples). He and his wife, Kathryn Habecker Duncan, served as missionaries in Tibet from 1921 to 1933. They spent another two years in western China and Tibet on an expedition for the 'Philadelphia Museum of Natural Science.

Before joining Army intelligence, Mr. Duncan worked for the Unemployment Compensation Service in Bellefontaine, Ohio.

He was a member and elder of the First Christian Church of Alexandria.

After his retirement, he and his wife moved to Berkeley Springs, W. Va. They had lived in the Fahrney-Keedy Home for several years.

In addition to his wife, he is survived by two sons, John, of Alexandria, and Robert, of Vienna; two daughters, MarianAdams, of Hagerstown, and Esther Dunker, of Pekin, I11,; a brother and sister in Ohio, 12 grandchildren and one great-grandchild.