Barbara Fairchild Dulin, 57, a former technical information specialist with the Army Medical Intelligence and Information Agency, died Monday at Frederick Memorial Hospital in Frederick, Md. She had a circulatory disorder.

Mrs. Dulin was in San Jose, Calif., and attended San Jose State College. She later lived in Santa Cruz, Calif., and worked on quality control engineering for the Sylvania Corp. and other firms. She moved to Arlington in 1959 and continued her quality control work for the Melpar corporationand Litton Industries.

In 1971, she joined the Army's Medical Intelligence and Information Agency. When that agency was moved from the Washington area to Frederick two years ago, Mrs. Dulin and her family moved to Frederick also. She resigned last month because she and her husband, William Easterday Dulin, were planning to return to Alexandria, where they had lived before going to Frederick. While working for the Army, Mrs. Dulin received two Sustained Superior Service awards and one Outstanding Performance Award.

In her earlier years in this area, Mrs. Dulin was a soprano in the old American Light Opera Company and also designed costumes for the Hexagon Club, an amateur theatrical group.

Her marriage to Sterling P. Ingram Jr. ended in divorce.

In addition to Mr. Dulin, of Frederick, survivors include three children by her first marriage, Sue Rita Heeren of San Luis Obispo, Calif., Linda Wing of Arlington and Army Lt. Sterling P. III, who is stationed at Fort Gordon, Ga.; one brother, Ernest C. Fairchild of San Jose, and 10 grandchildren.