Thelma Bloomgren De Vore, 73, a retired Central Intelligence Agency employe, died Friday at Montgomery General Hospital in Olney. She had diabetes.

Mrs. De Vore was born in Warren, Pa. She moved to Washington in 1926 following her marriage to Elmer J. De Vore. In 1932, she went to work for the old War Department and began her career in intelligence at that time.

She was a briefing officer for Army intelligence duriing World War II, and was one of the original employes of the CIA when it was formed after the war. She was in the office of current intelligence at the time of her retirement.

Mrs. DeVore received several letters of commendation and a presidential citation during her government career.

After her retirement in 1966, she was the administrative officer of the Society of the Cincinnati. She retired a second time about 1972.

Mrs. De Vore, who lived in Silver Spring, was active in the American Red Cross, and for many years was a volunteer at St. Elizabeths Hospital. She was a member of Oakdale-Emory Methodist Church in Olney.

In addition to her husband of Silver Spring, survivors include a daughter, Dorothy Coburn of Silver Spring, and one granddaughter.