Correction: An earlier version of this article incorrectly reported that Mr. Mattison’s given name was Graham. It was Gorman. The article has been corrected.

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

James Montgomery III, D.C. Insurance Commissioner

James Montgomery III, 85, insurance commissioner for D.C. government from 1978 to 1983 who later operated a consulting business, died Feb. 16 at his home in Ponce Inlet, Fla. The cause was cancer said a daughter, Jennifer Greenway.

Mr. Montgomery, a native of Camden, S.C., began his career with the D.C. Department of Insurance as an actuarial assistant in 1959. In 1994, he moved to Florida from Great Falls, Va., and continued to operate his consulting business until 2002.

George Bedford Jr., GWU purchasing officer

George Bedford Jr., 70, former chief of credit card purchasing for operating expenses of George Washington University, died Feb. 4 at a hospice center in Washington. The cause was liver cancer, said a son, George Bedford III.

Mr. Bedford, a resident of Chevy Chase, Md., was born in Washington. He worked 28 years as an accounting officer for GWU, retiring as purchasing card director in 2013. He was an amateur baseball player playing in the Ponce de Leon League for 30 years. He also coached youth baseball in Rockville, Md.

Janet Rotariu, church financial administrator

Janet Rotariu, 92, who retired in the early 2000s as a financial administrator for the Episcopal All Saints Church in Chevy Chase, Md., died Jan. 21 at a medical center in Salisbury, Md. The cause was a heart attack, said a son, Mark Rotariu.

Mrs. Rotariu was born Janet McAuley in Urbana, Ill., and moved to Bethesda in 1962 and Salisbury in 2003. She was a financial administrator at Bradley Hills Presbyterian Church in Bethesda from 1968 to 1977. She also volunteered with altar guild committees and served as vestrywoman at multiple churches. In the 1980s and 1990s, she volunteered with Children’s National Medical Center in Washington.

Grover ‘Bud’ Manderfield, bank president

Grover “Bud” Manderfield, 84, a Washington-area banker who began his career in 1958 as a loan officer of the bank of Occoquan in Virginia and retired in 1987 as president of Sovran Bank, died Feb. 17 at a hospital in Alexandria, Va. The cause was pneumonia, said his wife, Iris “Sam” Manderfield.

Mr. Manderfield, an Alexandria resident, was born in Massillon, Ohio, and grew up in Woodbridge, Va. He was president of Suburban Bancorp. when it merged in 1985 with Sovran Financial Corp., and Mr. Manderfield became president of its subsidiary Sovran Bank. After several later mergers, Sovran became part of Bank of America.

On retiring from banking, Mr. Manderfield and a partner formed an asset management company. He was a consultant to the Federal Reserve Board and a president of the Maryland Bankers Association.

Richard Thorington Jr., Smithsonian curator

Richard Thorington Jr., 79, curator emeritus in the National Museum of Natural History’s mammals division, died Feb. 24 at a hospital in Bethesda, Md. The cause was complications from a bacterial blood infection, said his wife, Caroline Thorington.

Dr. Thorington, a Bethesda resident, was born in Philadelphia. He joined the Smithsonian Institution staff as curator of mammals in 1969 and took emeritus status in 2015. He was author of two books about squirrels and more than 50 scientific papers.

In the 1970s he was diagnosed as having Charcot-Marie-Tooth disease, a peripheral neuropathy disorder that by the 1990s had made him largely dependent on a wheelchair and an electric three-wheel scooter. He continued to work full-time and described being a quadriplegic as “a nuisance,” his wife said.

T. Robert Romero, lawyer, court auditor

T. Robert Romero, 92, a Montgomery County lawyer and longtime auditor for Montgomery County Circuit Court, died Feb. 24 at an assisted-living center in Las Vegas. The cause was coronary artery disease, said a daughter, Elizabeth Lee Dance.

Mr. Romero was born in Washington. In 1949, he opened a law practice in Silver Spring, Md., and later moved his office to Rockville, Md., where he maintained a general law practice until retiring in 2016. He also served as court auditor in Montgomery County from 1962 until retiring. He moved to Las Vegas in 2016 from Silver Spring, Md.

G. Lindsay Mattison, nonprofit founder

G. Lindsay Mattison, 77, the founder of nonprofit organizations dedicated to examining alternatives to a variety of U.S. defense, nuclear and foreign relations policies, died Feb. 25 at a care facility in Fort Washington, Md. The cause was complications from pneumonia, said a daughter, Jeanne Mattison.

Gorman Lindsay Mattison, a resident of Fort Washington, Md., was born in Worcester, Mass. In the late 1960s, he helped compile and edit “The Politics of Escalation in Vietnam,” a paper that argued the invalidity of premises underlying the escalation of the Vietnam War.

Later, he founded the Center for Defense Information and the International Center for Development Policy, nonprofit organizations backed by foundation grants and other fundraising efforts. Under these auspices, Mr. Mattison warned of the perils of nuclear waste and nuclear power and investigated consequences of U.S. policies in places such as El Salvador and Nicaragua. He retired about five years ago.

Ann Smith-Marshall, dance and exercise instructor

Ann Smith-Marshall, 89, a dance and exercise instructor who for almost 60 years taught classes in community centers, schools, nursing homes and private facilities, died Feb. 21 at a care center in Annandale, Va. The cause was a stroke, said a son, Eric Smith.

Mrs. Smith-Marshall was born Anne Wheeler in Western Springs, Ill., and moved to the Washington area 45 years ago, settling in Alexandria, Va. She wrote five books on exercise and stretching and numerous magazine and newspaper articles, and also produced a series of exercise videos. She was a consultant to the International Association of Physical Activity, Aging and Sports. She also did sculpting and quilting, and for a period ran a frame, art and antique store.

Charles Ruttenberg, lawyer

Charles Ruttenberg, 94, a Washington lawyer and partner in the firm of Arent Fox who retired in 2008, died Feb. 27 at his home in Washington. The cause was cancer, said a daughter, Alexandra Ruttenberg.

Mr. Ruttenberg, a native of Reading, Pa., began his legal career in Washington as an associate with Covington & Burling. Later he was deputy general counsel to the National Science Foundation and general counsel to the National Foundation on the Arts and the Humanities. In 1969, he joined Arent Fox, where his specialties included entertainment, intellectual property and antitrust law. He was a former president of the Cosmos Club.

Janet Brown, Pentagon employee

Janet Brown, 93, who retired from the Pentagon in 1972 as adviser for Latin American affairs in the office of the Chief of Naval Operations, died Feb. 24 at a hospital in Arlington, Va. The cause was heart ailments, said a son, Bradford Brown.

Mrs. Brown, an Arlington resident, was born Janet Waldo in Toll Gate, W.Va. She settled in the Washington area after Navy service during World War II and began working at the Pentagon. She was an analyst for Army intelligence before joining the Chief of Naval Operations.

Vasilia ‘Valia’ Vassila, singer, choral teacher

Vasilia “Valia” Vassila, 63, a piano and chorus teacher at Montgomery County, Md., schools in the 1980s and 1990s, including Mill Creek Towne and Beverly Farms elementary schools and Thomas Pyle Middle School, died Feb. 6 at a hospital in Bethesda, Md. The cause was metastasized lymphoma, said a daughter, Liana Vassila.

Mrs. Vassila was born Vasilia Apostolou in Athens, and moved to the Washington area in the mid-1970s, eventually settling in Potomac, Md. Early in her career, she performed at the Athens Conservatoire and toured Europe with a Greek national choir. Her memberships included the Greek Orthodox Ladies Philoptochos Society, a charitable organization. In the 1980s to the early 1990s, she led the choir at Greek Orthodox Church of St. George in Bethesda.

William Brown, obstetrician-gynecologist

William Brown, 81, an obstetrician-gynecologist who taught at Howard University medical school and served in staff positions at Howard hospital, died March 2 at a hospital in Baltimore. The cause was complications from pneumonia, said his wife, Hattie Brown.

Dr. Brown, a Washington resident since 1960, was born in New York City. He served on the medical staff at Howard for 30 years before retiring in 2004 after holding positions that included director of medical services and assistant professor in the obstetrics and gynecology department. He was a past president of the Medico-Chirurgical Society of the District of Columbia and a past executive secretary of the National Medical Association.

Mary-Louise Walker, foreign languages teacher

Mary-Louise Walker, 93, who taught French and Spanish at Glasgow Middle School in Lincolnia, Va., among other schools in Northern Virginia from the 1960s to the 1980s, died Feb. 26 at a retirement home in Winchester, Va. The cause was congestive heart failure, said a daughter, Linda Walker-Hill.

Ms. Walker, a Fairfax County resident from 1953 to 2011, was born Mary-Louise Hershberger in Johnstown, Pa. Her memberships included the Daughters of the American Revolution and the P.E.O. Sisterhood. She was a former volunteer usher for the Wolf Trap performing arts center in Vienna, Va.

Mary Love, English teacher

Mary Love, 69, who taught English at Luther Jackson Middle School in Falls Church, Va., from the mid-1990s to 2009, died March 8 at a medical center in Loveland, Colo. The cause was cardiac arrest, said a son, Ralph Love.

Mrs. Love was born Mary Blaisdell in Milwaukee and settled in Fairfax County, Va., in 1984. She moved to Fort Collins, Colo., in 2015. Her memberships included the Daughters of the American Revolution, the Mayflower Society and the P.E.O. Sisterhood.

Andre Le Gallo, CIA officer

Andre Le Gallo, 78, a CIA clandestine officer from 1961 to 1994 who served in Asia, Africa, Europe and then spent five years as vice president for corporate security for the energy giant Enron, died March 5 at his home in Woodland, Calif. The cause was amyotrophic lateral sclerosis, also known as Lou Gehrig’s disease, said a daughter, Therese Le Gallo.

Mr. Le Gallo was born in Paris and lived with his grandparents in Brittany during World War II, immigrating to the United States at 11. After his CIA retirement, he moved to Houston from McLean, Va., for Enron as one of its first hires from the spy agency. “They were looking for people who knew where the international buttons were,” he later told the New York Times. He left in 1999, several years before the company imploded in a massive fraud scheme. He eventually moved to California and wrote spy novels.

Joel Fisher, environmental adviser

Joel Fisher, 76, an environmental adviser from 1980 to 2006 to representatives of the United States and Canada on the use of air and water resources in the boundary regions shared by both countries, died Feb. 24 at a hospital in Green Valley, Ariz. The cause was multiple systems failure, said a son, Paul Fisher.

Dr. Fisher was born in Brooklyn and lived in Fairfax County, Va., from 1966 until 2006. Early in his career, he was a staff engineer with the Federal Water Pollution Control Administration and an Environmental Protection Agency research engineer, specializing in biological surveys of Alaska rivers for the Alaska pipeline. In 2006, he moved to Tucson, where he did environmental consulting for clients including the EPA and the State Department.

Frances Williamson, volunteer

Frances Williamson, 83, a homemaker who did volunteer work with Bethesda First Baptist Church, Suburban Hospital, the American Cancer Society and a men’s homeless shelter in Rockville, Md., died Feb. 25 at a hospice in Rockville. The cause was a stroke and heart ailments, said a daughter, Donna Lynn Melvin.

Mrs. Williamson, a resident of Silver Spring, Md., was born Frances Bledsoe in Bethesda, Md. As a young woman, she was a secretary at the Pentagon.

Richard Balenger, IBM engineer

Richard Balenger, 76, an IBM computer engineer for 26 years who turned to freelance computer training in retirement, died March 6 at a hospice center in Jacksonville, Fla. The cause was cardiopulmonary disease, said a daughter, Victoria Balenger.

Mr. Balenger, a native Washingtonian, was a former resident of Silver Spring, Md., who most recently lived in Jacksonville. His memberships included the Wheaton Moose Club and several bowling leagues.

Lane Hart IV, NSA cryptanalyst

Lane Hart IV, 89, a National Security Agency cryptanalyst who retired in 1979 after 28 years with the agency, died March 10 at a care center in Ellicott City, Md. The cause was congestive heart failure, said a son, Lane Hart.

Mr. Hart, a resident of Ellicott City, Md., was born in Harrisburg, Pa. He was a former president of the Association for Retarded Citizens of Howard County, Md., and a volunteer wholesale manager of a charitable organization that provided goods for a welfare clinic in Guatemala.

Patrick Quinlan, Army officer

Patrick Quinlan, 82, a retired Army lieutenant colonel and Vietnam War veteran who for 13 years after retirement ran his own executive search and recruitment organization, died March 9 at his home in Alexandria, Va. The cause was Alzheimer’s disease, said his wife, Patricia Quinlan.

Col. Quinlan, a native of Mount Pleasant, Mich., served 22 years in the Army before retiring in 1979. He then was president of High Quality Search in the 1980s and 1990s. He was president of the Boosters Club at Thomas Edison High School in Alexandria and a Eucharistic minister at Woodlawn Chapel at Fort Belvoir, Va.

Harry E.T. Thayer, ambassador

Harry E.T. Thayer, 89, a career Foreign Service officer who served as ambassador to Singapore in the early 1980s and retired in 1989 as the dean of the Foreign Service Institute’s School of Language Studies, died Jan. 21 at a hospice center in Washington. The cause was nasopharyngeal cancer, a rare form of head and neck cancer, said a son, Robert Thayer.

Mr. Thayer was born in Boston, raised in Newtown Square, Pa., and moved to Washington in 1956 to work for the State Department. His overseas assignments took him to posts in Hong Kong, Taiwan, Singapore and Beijing. In the late 1970s, he served as the State Department’s director of Chinese affairs. Besides foreign affairs and diplomatic organizations, his memberships included the C&O Canal Association, a conservation group.

Mariko Ando, singer

Mariko Ando, 97, a singer and soloist in the choir at the Protestant chapel at Fort Myer, Va., and in concerts and operas in the Washington area and elsewhere, died March 10 at a hospital in Alexandria, Va. The cause was respiratory failure and pneumonia, said a daughter, Roxanne Ando.

Mrs. Ando was born Mariko Mukai to Japanese immigrant parents in Seattle, and she pursued a musical career in opera and concerts in Seattle, New York and Colorado. In 1961, she moved to the Washington area and eventually settled in Alexandria.

At the Arlington Music Theatre, she sang the role of Rosina in Rossini’s “The Barber of Seville,” and she continued to sing in the choir at Fort Myer through her 80s. She also taught piano lessons at home. Her last public performance was at 95 as a guest soloist at a concert at a senior center in Silver Spring, Md.

Rita Rosenkrantz, court domestic relations master

Rita Rosenkrantz, 82, who made preliminary rulings and judgments as a domestic relations master for the Circuit Court of Montgomery County, Md., from 1984 to 1994, died Feb. 15 at a hospice care center in Rockville, Md. The cause was a subdural hematoma, said a daughter, Clove Haviva.

Ms. Rosenkrantz was born Rita Reitman in Fairmont, W.Va., and moved to the Washington area in the early 1960s, eventually settling in Rockville. From 1967 to 1984, she led a private law practice in Silver Spring, Md. She held leadership positions with the Women’s Bar Association of Montgomery County and the Maryland State Bar Association. She volunteered with the Girl Scouts and served on the board of the Jewish Social Service Agency, providing pro bono legal services for adoptions.

John Renzi, oboist

John Renzi, 85, an oboist in military bands who retired in 1975 as a master gunnery sergeant and chief oboist in the “President’s Own” U.S. Marine Corps band, died March 14 at his home in Summerland Key, Fla. The cause was congestive heart failure and a stroke, said his wife, Betty Renzi.

Mr. Renzi was born in New York, and his father was a musician in the NBC Symphony conducted by Arturo Toscanini. The younger Mr. Renzi was an oboist with the U.S. Military Academy band at West Point, N.Y., from 1948 to 1955 and with the Army Field Band at Fort Meade, Md., from 1955 until he joined the “President’s Own” in 1962.

In retirement, he taught music lessons and also was a contracting officer for the Small Business Administration for 10 years. A former resident of Boyds, Md., he sailed with his wife to Summerland Key in 1995 and decided to stay there.

Lawrence Scheinman, nuclear nonproliferation expert

Lawrence Scheinman, 82, an expert on nuclear nonproliferation who joined the Carter administration’s State Department in the late 1970s and worked to curb Japan’s plutonium program, died Feb. 19 at his home in Vienna, Va. The cause was congestive heart failure, said a son, Adam Scheinman.

Dr. Scheinman, a native of Queens, spent much of his career in academia teaching international affairs and political science. He served in the Clinton administration as assistant director of the Arms Control and Disarmament Agency and remained in the Washington area afterward.

Dr. Scheinman served on multiple advisory committees and organizations, including the Senate Foreign Relations Policy Advisory Group, and his memberships included the Atlantic Council and the Council on Foreign Relations. He wrote books on nuclear proliferation.

Richard Littell, lawyer

Richard Littell, 85, a Washington lawyer who specialized in administrative matters in private practice after having served during the 1970s as general counsel to the Postal Rate Commission and the Civil Aeronautics Board, died Feb. 5 at his home in Fairfax County, Va. His death certificate listed the sole cause as “complications of advanced aging.”

Mr. Littell was born in Hartford, Conn. He came to Washington in 1958 as an attorney adviser to the Civil Aeronautics Board. In that capacity, he helped negotiate a treaty on hijacking and sabotage. Later he worked for private law firms including Dickstein, Shapiro & Morin; and Bishop, Cook, Purcell & Reynolds. From 1990 until he retired in 2005, he had a solo private practice.

He was author of a legal treatise on the Endangered Species Act of 1973 and of pieces in The Washington Post, the New York Times and the Washington Times on subjects including utility rate cases and the ivory trade and the saving of elephants.

Stanley Deutsch, anesthesiologist

Stanley Deutsch, 86, an anesthesiologist and professor at George Washington University Hospital for nine years before his retirement in 1998, died March 12 at his home in Bristow, Va. The cause was complications from Parkinson’s disease, said his wife, Margaret Deutsch.

Dr. Deutsch was born in New York City. He was on the anesthesiology faculty at the University of Texas at Houston, the University of Oklahoma, the University of Chicago and Harvard before joining GWU in 1989. He had been a longtime examiner for the American Board of Anesthesiology and was a former president of the American College of Anesthesiologists. A former resident of Arlington, Va., he moved to Bristow seven years ago.

Carol Smith, bookkeeper

Carol Smith, 75, a bookkeeper at Howard University’s dental college from the mid-1960s until her retirement in 1989, died March 11 at a hospital in Henderson, N.C. The cause was pneumonia, said a son, Larry Smith.

Mrs. Smith was born Carol McDowell in Washington. In 2000, she moved to Warrenton, N.C., from the District.

Roger Shoup, Presbyterian clergyman

Roger Shoup, 79, a Presbyterian clergyman who served eight churches in Northern Virginia and Maryland on interim assignments, died March 11 at his home in Gainesville, Va. The cause was renal failure, said his wife, Marilyn Cromartie.

Dr. Shoup was born in Fremont, Ohio, and held clerical positions at churches in Ohio, Michigan and Pennsylvania before coming to the Washington area in 1997 as interim pastor at John Calvin Presbyterian Church in Annandale.

He was a specialist in conflict resolution. Among the churches he later served were Fairfax Presbyterian Church, Christ Memorial Presbyterian Church in Columbia, Md., Westminster Presbyterian Church in Alexandria, Manassas Presbyterian Church and Providence Presbyterian Church in Fairfax County. He retired in 2011 after two years as head of Chester Presbyterian Church in Chester, Va., south of Richmond.

Milton Newberry, army colonel

Milton Newberry, 79, a retired Army colonel who participated in combat operations in Vietnam, died March 5 at a hospital in Washington. The cause was blood cancer, said a son, James Newberry.

Col. Newberry, a resident of McLean, Va., was born in San Antonio. He served in the Army from 1959 to 1986, retiring as a staffer in the office of Joint Chiefs of Staff. He was vice president for Army operations at Burdeshaw Associates, a Washington-based defense consultancy, from 1987 to 2017.

— From staff reports