Marguerite L. Whitfield, 70, a retired English teacher in the Fairfax County schools who also taught extension courses at Northern Virginia Community College, died Oct. 28 at Henrico Doctors Hospital in Richmond. She had emphysema.

Mrs. Whitfield was born in Scotland Neck, N.C. She grew up in North Carolina and Washington and graduated from the old Central High School. She then returned to North Carolina, where she attended Louisburg College and graduated from the University of North Carolina. She received a master's degree in English from American University.

She was a teacher in Rock Hill, S.C., before moving back here in 1961 and joining the Fairfax school system. She was at J.E.B. Stuart High School when she retired in the mid-1970s.

Mrs. Whitfield was a member of the Daughters of the American Revolution, the American Association of University Women and Walker Chapel United Methodist Church.

She lived in Arlington until about 1978, when she moved to Williamsburg. She later moved to Southern Pines, N.C.

Her husband, Ralph Whitfield, who taught education at American University, died in 1985.

Survivors include two sons, Michael Whitfield of Chester, Va., and Bryan Whitfield of Timonium, Md.; her mother, Nina Ruffner of Colonial Heights, Va., and three grandchildren.

LILLIAN ROSE, 90, a former Washington Post employe, merchant and postmistress who was active in volunteer work, died of cardiac arrest Oct. 30 at Sibley Memorial Hospital. She lived in Washington.

Mrs. Rose, who moved here in the early 1930s, was a native of Philadelphia. She was a supervisor in The Washington Post circulation department in the 1940s.

With her husband Jack, she owned and operated the Suitland Children's Shop from the 1940s until his death in 1956. Also during this time, she was postmistress in Suitland.

Mrs. Rose had done volunteer work for the Jewish Consumptive Relief Society, ORT, Hadassah and the Cancer Society of Greater Washington. She also had been a member of the Washington-Baltimore Newspaper Guild.

Survivors include a son, Norman, of Nyack, N.Y.; a daughter, Arline Gordon of Chevy Chase; a sister, Yetta D. Semsker of Washington; eight grandchildren, and seven great-grandchildren.

THOMAS E. BONACORDA, 56, a founder and chairman of the Spartan Plumbing, Heating and Air Conditioning Co. in Brentwood, died of leukemia Oct. 30 at the Washington Hospital Center.

Mr. Bonacorda, a resident of Hyattsville, was born in Brooklyn, N.Y. He served in the Army in Japan in the late 1940s. He moved to the Washington area in 1959.

A plumber by profession, he helped found Spartan Plumbing in 1964 and was chairman of the firm at the time of his death.

Mr. Bonacorda was a member of the Plumbing, Heating and Cooling Contractors Association, the Air Conditioning Contractors of America, the American Legion, the Elks Lodge in Hyattsville and the Prince George's County Chamber of Commerce.

Survivors include his wife, Patricia J. Bonacorda of Hyattsville; four children, Frank V. Bonacorda of Harper's Ferry, W.Va., Susan K. Hayes of Annapolis, Patricia Bonacorda of Hyattsville and Thomas P. Bonacorda of College Park; one stepson, Bruce D. Pletsch of Hyattsville, and four grandchildren.

DOROTHY M. SHARFMAN, 78, a former Chevy Chase resident who was active in Hadassah, died Oct. 23 at a retirement home in Sebring, Fla., of complications of diabetes and a stroke.

Mrs. Sharfman was born in Galveston, Tex., and reared in Allentown, Pa. She attended Cedar Crest College there.

In 1944 she moved to the Washington area. She was corresponding secretary of the Washington District of Hadassah and president of the Washington Highlands chapter.

Mrs. Sharfman moved to Sebring in 1982.

Survivors include her husband, Herbert Sharfman of Sebring; one daughter, Jo Ellen Crews of Sebring; one son, Richard Sharfman of Short Hills, N.J., and two grandchildren. JAMES L. KELLEY, 71, a retired official of the National Security Agency and past president of the Little Theater of Alexandria, died Oct. 30 at a hospital in New York City after a heart attack. He lived in New York City.

Mr. Kelley was a native of Alexandria and graduated from Georgetown University's foreign service school. He served with the Army in the Pacific theater during World War II, then worked for the National Security Agency until retiring as assistant to its personnel director in 1963.

He then moved to New York City where he founded International Library Services, a concern that located books for foreign clients. He sold that business and retired in 1985.

Mr. Kelley was a member of the Army & Navy Club.

Survivors include a sister, Agnes Kelley Robey of Raleigh, N.C.