Theodore A. Wertime, 62, a retired Foreign Service officer, a research associate at the Smithsonian Institution and an author, died of cancer April 8 in a hospital in Chambersburg, Pa. A Washington-area resident from 1939 to 1976, he lived in McConnellsburg, Pa., at the time of his death.

During World War II, Mr. Wertime served in China with the Office of Strategic Services, a predecessor of the Central Intelligence Agency. He did similar work with the State Department from 1945 to 1955 and helped compile a study of North Korea.

He then joined the old U.S. Information Agency. Between assignments as a cultural officer in Iran and Greece, he edited the Voice of America's "Forum." He was the agency's energy program officer for two years before retiring in 1975.

After leaving government, Mr. Wertime joined the Smithsonian's Museum of Natural History as a research associate. He led archeological expeditions for the Smithsonian and the National Geographic Society. He also was a visiting scientist at the University of Pennsylvania.

Mr. Wertime was the author of "The Coming of the Age of Iron," which was published by Yale University Press in 1980. He contributed articles to The Washington Post, Science magazine, the Journal of Communications and the Foreign Service Journal.

He was a native of McConnellsburg and a graduate of Haverford College. He earned a master's degree in history at American University.

Survivors include his wife, Bernice (Peggy), of McConnellsburg; four sons, John T., of Arlington, Richard A., of Jenkintown, Pa., Steven F., of Falls Church, and Charles M., of McConnellsburg; two brothers, Rudolf, of Greencastle, Pa., and Joseph, of Chambersburg, Pa.; three sisters, Mary K. Wehausen of Berkeley, Calif., Dr. Clara Gilmer of Lemoyne, Pa., and Selma Thompson of West Chester, Pa., and four grandchildren.