Retired Army Col. Claude B. Thummel, 91, an ordnance officer who had lived in Falls Church for many years, died Saturday at Irwin Army Hospital, Ft. Riley, Kan.

Before retiring in 1945, he was commander of Nansemond Ordnance Depot, Portsmouth, Va.

Col. Thummel and his wife, Dorothy L. Thummel, then moved to Falls Church, where they lived until moving to Manhattan, Kan., six years ago.

Born in Axtel, Kan., Col. Thummel received an engineering degree from Kansas State University. He graduated from the Military Academy at West Point in 1909.

He served in France in World War I. From 1930 to 1935, he was logistics officer for Gen. Douglas MacArthur, who was then Army chief of staff here.

Col. Thummel's decorations included the Legion of Merit.

After retirement, he devoted himself to genealogy and wrote several books on the subject.

A Mason for 60 years, he was associated with the Hancock Lodge at Ft. Leavenworth.

In addition to his wife, he is survived by two daughters, Elizabeth T. Redfield, of Las Vegas, Nev., and Kate Louise Parish, of Vienna, eight grandchildren and three great-grandchildren.

The family suggests that expressions of sympathy may be in the form of contributions to the American Cancer Society.