An obituary in Tuesday's editions of The Washington Post about Dr. Walter F. Yondorf, 60, a vice president of Mitre, Inc., a defense contractor, gave an incorrect address for where the family suggests that expressions of sympathy should be sent. The correct address is the University of Chicago, 5733 University Ave., Chicago, Ill., 60637.

Dr. Walter F. Yondorf, a vice president of the Mitre Corporation, a defense contractor that specializes in communications, died of cancer Friday at Sibley Memorial Hospital.

Dr. Yondorf joined Mitre in 1962 as a member of the technical staff at the company's headquarters in Bedford, Mass. He transferred to its Northern Virginia office a year later.

He was promoted through a series of technical management posts and played a major role in developing support programs for the Army and the defense communications industry. He had been vice president for command, control and communications since September 1979. He lived in Sumner, Md.

Dr. Yondorf was a native of Nuremberg, Germany, and came to this country in 1937. He lived in the Chicago area and attended Northwestern University before entering the Army in World War II.

During the war, he served with the Army's Signal Corps intelligence and participated in the invasions of North Africa, Italy and Southern France.

After the war, he returned to Chicago and earned a doctorate in political science at the University of Chicago. He stayed on at Chicago and was a political science instructor, research director and fellow of the university's Social Science Research Council before joining Mitre.

Dr. Yondorf was a member of the International Institute of Strategic Studies, the American Association for the Advancement of Science and the American Political Science Association.

Survivors include his wife, Anne L., of Sumner; two daughters, Barbara A. Mitchell of Denver, Colo., and Wendy A. Yondorf of Montreal, Canada; a son, Thomas G., of Chicago, and one brother, Eric, also of Chicago.

The family suggests that expressions of sympathy be in the form of contributions to the University of Chicago, 6733 University Ave., Chicago, Ill. 60637.