Obituaries of residents from the District, Maryland and Northern Virginia.

Roy W. Gibson Sr., plumber

Roy W. Gibson Sr., 71, a retired plumber for James Horan Plumbing, died March 9 at his home in Waldorf, Md. He had rheumatoid arthritis, said his wife, Deborah Gibson. Mr. Gibson was born in Washington and spent his high school years in Palmer Park, Md. At 16, he began work as a plumber’s apprentice. At 19, he became a plumber for James Horan Plumbing, where he remained until he retired in 1981.

Robert T. Winfree Jr., Army colonel

Robert T. Winfree Jr., 91, a retired Army colonel who served in the Korean and Vietnam wars and later became a real estate agent, died March 14 at a retirement center in Williamsburg, Va. The cause was complications from a stroke, said a daughter, Katherine Winfree.

Col. Winfree was born in Daytona Beach, Fla., and he graduated from the U.S. Military Academy at West Point, N.Y., in 1946. His military career included two tours of duty in Korea and a tour of duty in Vietnam. Among his decorations were the Bronze Star Medal and a Meritorious Service Medal. He lived in Alexandria before he retired from the military in 1974. He later lived in Virginia Beach, where he worked as a real estate agent, and in Williamsburg.

Mordecai M. Roshwald, professor, writer

Mordecai M. Roshwald, 93, a professor and author of novels and nonfiction books about the Judaic tradition and other subjects, died March 19 at his home in Silver Spring. He had pneumonia and an infection, said a son, Aviel Roshwald.

Dr. Roshwald was born in Drohobych, Poland (now in Ukraine), and he settled in Silver Spring in 1995. He was a professor of humanities at the University of Minnesota from 1957 to 1982 and wrote essays for such publications as the Nation and the Jewish Journal of Sociology. His 1959 novel, “Level 7,” about survivors in a post-nuclear age, was the basis of a BBC television drama in 1966.

Sybil M. Summers, music teacher

Sybil M. Summers, 91, a music teacher in elementary schools for 30 years, died April 6 at a nursing home in Alexandria, Va. She had heart ailments, said her legal guardian, John DuVall.

Miss Summers was born in Columbia, S.C., and settled in Alexandria. She taught instrumental and vocal music at several Alexandria public elementary schools before retiring in about 1990. She did volunteer work for the Salvation Army.

William H. McNair, CIA case officer

William H. McNair, 76, a retired CIA case officer who served in Venezuela, Honduras and Spain, died April 6 at a hospital in Fort Belvoir, Va. The cause was congestive heart failure, said a daughter, Kelly Goranson. Mr. McNair, who lived at the Fairfax retirement center at Fort Belvoir, was born in Richmond. He served as an Army intelligence officer from 1964 to 1982, then transferred to the CIA, where he served in the operations directorate. He retired in 2003. He received a Career Intelligence Medal.

Helen Wertman Stang, IRS supervisor

Helen Wertman Stang, 102, a former supervisor with the Internal Revenue Service, died March 9 at a retirement home in Rockville. The cause was congestive heart failure, said a nephew, William H. Wertman.

Mrs. Stang was born in Washington, and she worked for the Veterans Administration before joining the IRS in 1942. She retired from the agency in 1968. She and her husband became guardians of her brother’s two orphaned children in 1942. Mrs. Stang, a former resident of Silver Spring, lived in Brandon, Fla., for many years before moving to Rockville in 1991. She was honored as woman of the year by a professional women’s association in 1967. She was a member of several Lutheran churches, most recently Emmanuel Lutheran Church in Bethesda.

Dexter M. Kohn, lawyer, arbitrator

Dexter M. Kohn, 93, who had a private law practice in the District for more than 55 years, died March 31 at his home in Washington. He had lung cancer, said a son, Edward Kohn.

He was born in Brookline, Mass. He enlisted in the Army in 1943 and was a cryptographer during World War II. He specialized in estate and business law until 2006. In retirement, he was an arbitrator for the D.C. bar and the American Arbitration Association. He was a founder of Temple Sinai in Washington and a board member of Woodmont Country Club in Rockville.

Estelle R. Turtil, bookkeeper

Estelle R. Turtil, 86, the former chief bookkeeper for the Jewish Council for the Aging, died March 26 at a hospital in Washington. The cause was atherosclerotic cardiovascular disease, said her husband, Joseph Turtil. Mrs. Turtil, a resident of Silver Spring, was born Estelle Heifferman in the Bronx. She settled in the Washington area in 1974. She lived in Silver Spring and worked at the Jewish Council for the Aging in Rockville for 17 years, retiring in 1991.

Judith Currier, business partner

Judith Currier, 74, who was a partner in a business that provided systems analysis for aviation and aeronautics, died March 26 at her home in Arlington. She had respiratory ailments, said a niece, Melody Page. Mrs. Currier was born Judith Spangenberg in Washington and co-founded Metis Inc. in the 1960s. She helped manage the business until it was sold about 10 years later. She was active in alumni events of Arlington’s Washington-Lee High School, where she was a member of the class of 1958.

Harry L. Lamb, ex-POW, FAA employee

Harry L. Lamb, 94, a former World War II prisoner of war who retired from the central systems division of the Federal Aviation Administration’s flight standards service in 1982, died March 30 at a hospital in Falls Church, Va. The cause was pneumonia, said a daughter, Laura Wickline.

Mr. Lamb was born in Erie, Pa., and he enlisted in the Army Air Corps in 1939. Five years later, his aircraft was shot down during a bombing raid on Romania’s Ploesti oil fields. He was taken as a prisoner of war and kept for six months in a prison camp in Bucharest, Romania. After the war, he moved to the Washington area and worked for the CIA and the Navy Department for several years before joining the FAA in 1961. He was a member of several veterans and former POW organizations, including the 450th Bomb Group Memorial Association and the Association of Former Prisoners of War in Romania.

Elizabeth L. Pope, teacher’s assistant, teacher

Elizabeth L. Pope, 85, a teacher’s assistant and resource teacher in Arlington County public schools for more than 30 years, died March 27 at a hospital in Washington. The cause was complications from a stroke suffered in 2009, said a daughter, Gwendolyn Gregory. Mrs. Pope was born Elizabeth Gaskins in Charles Town, W.Va., and moved to the Washington area in the late 1940s. She began teaching in the mid-1960s at Drew Model Elementary School and Swanson Middle School. She retired from Williamsburg Junior High School in 1994 and worked as a travel chaperone and receptionist with Arlington County’s recreation department until 2009. She chaired the deacon board at Faith United Church of Christ in Washington and volunteered with the Arlington School Board. She settled in Fort Washington, Md., in 2011.

Morris ‘Murray’ Weisz, labor economist

Morris “Murray” Weisz, 101, a labor economist who was director of the industrial relations division of the Paris-based Organization for Economic Cooperation and Development from 1972 to 1975, died March 24 at a nursing home in Rockville, Md. The cause was pneumonia, said a son, David Weisz.

Mr. Weisz was born in New York City and worked at the Labor Department from 1948 to 1965, including as deputy assistant secretary for labor standards. He then transferred to the State Department, where his positions included counselor for labor affairs at the U.S. Embassy in New Delhi and executive secretary of the Board of the Foreign Service. He left the State Department in 1979 and worked as an independent consultant until 1996. In retirement, he served on Montgomery County’s Disability Retirement Hearing Board and the Jewish Labor Committee’s board.

Eleanor D. Iversen, homemaker

Eleanor D. Iversen, 91, a homemaker who traveled with her husband to various international and U.S. cities establishing Freemasonry fraternities in the late 1970s to 2013, died April 2 at a hospice in Rockville, Md. She had complications after a hip and arm fracture, said a daughter, Joan Athen.

Mrs. Iversen was born Eleanor DeSale in Washington. She moved to Bethesda, Md., in 1959 with her husband, Charles Iversen, a former sovereign grand inspector general of the Scottish Rite Masons, and settled in Potomac in 2014. She was past president of the Woman’s Club of Bethesda, a former Girl Scout troop leader and a member of the Daughters of the Nile Masonic Order.

Harry C. Cochran, CIA officer

Harry C. Cochran, 91, a retired CIA officer, died April 5 at a retirement facility in Fairfax County. He had heart ailments, said a daughter, Laura Cochran-Sheppard.

Mr. Cochran, a longtime resident of Vienna, Va., was born in Falls Creek, Pa. He settled in Washington after World War II and worked briefly at the State Department before joining the CIA in 1952. His jobs included chief of the East Asian and Pacific division, managing editor of the daily central intelligence bulletin, director of the strategic warning staff and assistant national intelligence officer for warning, from which he retired in 1981.

Peter H. Smolka, lawyer

Peter H. Smolka, 95, a lawyer in the patent law firm of Buchanan, Ingersoll & Rooney in Washington, died March 28 at his home in Alexandria, Va. The cause was cardiac arrest, said a daughter, Geraldine Smolka. Mr. Smolka was born in Prague, and he came to the United States at the beginning of World War II. He worked on the Manhattan Project during the war and settled in Washington in 1961. He was a partner in the patent law firm of Burns, Doane, Swecker & Mathis, which later became Buchanan, Ingersoll & Rooney. He worked well into his 80s.

— From staff reports