Joseph P. Drummey, 51, a retired research analyst for the National Security Agency and a member of a barbershop quartet died Sunday at Salisbury Peninsula Hospital in Salisbury, Md., after a heart attack.

A resident of Cheverly, he was stricken while vacationing with his family in Ocean City.

Mr. Drummey worked for the NSA from 1954 until his retirement in 1971 for reasons of health.

He was born in Worcester, Mass., and graduated from the College of the Holy Cross there. He also attended Boston College law school.

He served in the Army during the Korean conflict.

Mr. Drummey was a member of the Alexandria chapter and a former president of the D.C. chapter of the Society for the Preservation and Encouragement of Barber Shop Quartet Singing in America (SPEBSQSA) and was a former area counselor for the organization.

He was a member of St. Ambrose Catholic Church in Cheverly and helped organize the church's baseball league.

Survivors include his wife, Patricia C., two daughters, Ellen M. and Ann P., and a son, Joseph P., all of Cheverly; his father, Joseph P., a sister, Mary Durand, and two brothers, James and Paul, all of Marlborough, Mass., and a sister, Margaret O'Connell, and a brother, John, both of Hudson, Mass.