Stanford Wyndom Bowman, 55, a retired supervisor with the Defense Supply Agency who later taught industrial arts at Catonsville Junior High School, died Saturday in the Washington Hospital Center after a heart attack.

Mr. Bowman was a civilian employe of the Defense Department for 20 years before retiring in 1970. He had worked at the Pentagon and at Cameron Station. He then taught at Catonsville Junior High until his second retirement in 1976.

He was a member of McKendree United Methodist Church in Washington, where he was the stewardship chairman and a member of the administrative board. He also was an usher and a teacher and superintendent in the Sunday school. He had been a Boy Scout leader at the church.

Since 1976, he had been a parent-volunteer at Langdon Elementary School in Washington.

Mr. Bowman was born in Lynchburg, Va., and lived in Washington. He was a graduate of Virginia State College in Petersburg. He served with the Army in the Pacific during World War II.

Survivors include his wife of 31 years, Joyce Young Bowman, and four daughters, Anita, Julie, Hope and Joy Bowman, all of Washington; two sons, Stanford W. Jr., of Houston, Tex., and Steven, of Washington; two sisters, Cordelia Claytor of Radford, Va., and Jessie B. Watson of Lynchburg, and two brothers, Eugene of Lynchburg and James Sydney Bowman of Washington.