Ret. Army Lt. Col. Arthur McCaleb Frey, 64, a chemical and intelligence officer and a veteran of World War II and the Korean war, died Oct. 2 at his home in Leesburg, Va. He had a heart ailment.

Col. Frey began his service as a chemical officer in World War II, when he was an assistant chemical officer assigned to Fifth Army Headquarters in the Mediterranean theater.

In 1947, he earned a master's degree in chemistry from Pennsylvania State University. He then served as an intelligence officer and instructor at the European Command's Chemical School and as a chemical officer at a military post in Heidelburg, Germany.

He returned to this country in 1952 as commandant of the old Chemical, Biological and Radiological School at Fort Belvoir. He later served as chemical officer of the Military District of Washington and post chemical officer at Fort Ritchie, Md. He was executive officer at Fort Ritchie when he retired from active duty in 1959.

After retiring, he taught high school biology and chemistry in Washington County, Md., public schools and was a civilian employe at a government installation in Virginia.

A native of Harrisburg, Pa., Col. Frey earned a bachelor's degree from Gettysburg College in Pennsylvania. After receiving his commission in the Army infantry in 1938, he was assigned to the Civilian Conservation Corps and was an infantry company commander in the Panama Canal Zone.

Col. Frey was a past commander of American Legion Post 34 in Leesburg.

Survivors include his wife, the former Janet Campbell, and a son, Arthur M. III, both of Leesburg; a daughter, Mrs. John S. Morris III of Richmond, and a granddaughter.