Obituaries of residents from the District, Maryland and Northern Virginia

Michael A. Armstrong, pathologist

Michael A. Armstrong, 56, a retired Army colonel who had managed a private Silver Spring-based anatomic and clinical pathology practice since 2006, died May 22 while visiting his condominium in Newark, Del. The cause was complications from diabetes, said his first cousin, Jenice Armstrong.

Dr. Armstrong, who had homes in Baltimore and Silver Spring, was born in Detroit and grew up in Glenn Dale, Md. He retired in 2006 after serving 22 years as a pathologist in the military.

John H. ‘Jack’ Sullivan Jr., architect

John H. “Jack” Sullivan Jr., 88, who ran the Montgomery County-based architecture firm of Sullivan and Associates for nearly 40 years and designed office buildings, banks, churches, schools, aquatic centers and homes, died June 17 at a retirement community in Rockville, Md. The cause was congestive heart failure, said a daughter, Lora Sullivan.

Mr. Sullivan, a native Washingtonian and former Potomac resident, started his business in 1957 and often worked with Clark Construction. He was a central figure in the documentary “A Pair of Jacks,” produced by Peerless Rockville, a historic preservation group. Mr. Sullivan was also a professional photographer, specializing in portraits and architectural photography. His memberships included Our Lady of Mercy Catholic Church in Potomac.

Robert L. Adeson, Alexandria physician

Robert L. Adeson, 83, an Alexandria physician and former chief of the department of surgery and president of the medical staff at what is now Inova Alexandria Hospital, died May 31 at a nursing home in Rockville, Md. The cause was complications from a stroke, said a daughter, Gretchen Haimes.

Dr. Adeson, who lived in Falls Church, was born in Pittsfield, Mass. He opened his Alexandria medical practice in 1963, specializing in pediatric and adult general surgery. He retired in 1997.

Robert C. Zimmerman, Montgomery educator

Robert C. Zimmerman, 96, an educator in the Montgomery County public school system for 31 years who retired in 1976 as an assistant principal at the old Belt Junior High School in Wheaton, died June 6 at his home in Sandy Spring, Md. The cause was pulmonary fibrosis, said a daughter, Margaret Zimmerman.

Mr. Zimmerman was born in Nuremberg, Pa. He joined the Montgomery school system in 1943 as a physical education teacher at Poolesville High School. He later was a mathematics and science teacher at Sherwood High School in Sandy Spring.

David B. Newman, DIA assistant director

David B. Newman, 88, who retired in 1993 as assistant director of the Defense Intelligence Agency, died June 7 at an assisted-living center in East Haven, Conn. The cause was cardiopulmonary arrest and pneumonia, said a daughter, Catherine M. Newman.

Mr. Newman was born in Riverside, Calif. He spent his career in missile systems, as an engineer and conducting long-range planning studies. He wrote a technical book, “Space Vehicle Electronics” (1964), and joined the DIA in 1974. He moved to Connecticut from Gaithersburg in 2010.

William M. Howard, Air Force illustrator

William M. Howard, 92, an artist and civilian illustrator for the Air Force at the Pentagon for 25 years before retiring in 1980, died June 18 at his home in Potomac, Md. The cause was colon cancer, said a daughter, Cheri Kennedy.

Mr. Howard was a native Washingtonian and a longtime Potomac resident. He was a member of the American Legion, the Masons and the Senior Artists Alliance of Montgomery County.

Helen K. Andersen, elementary school teacher

Helen K. Andersen, 93, a Montgomery County public school teacher and reading specialist for 17 years who worked primarily at the old Woodside Elementary School in Silver Spring, died June 6 at a retirement community in Burke, Va. The cause was heart disease, said a son, Mark Andersen.

Mrs. Anderson was born Helen Kelly in Wyandotte, Mich. She moved to Kensington, Md., in the late 1940s and taught art at Catholic University until the early 1950s. She retired in 1979 but continued working as a substitute teacher in the school system. She moved to Burke in 2004 and was a member of the Catholic Church of the Nativity.

Marianne F. Vardaman, court mediator

Marianne F. Vardaman, 78, a mediator at the D.C. Superior Court’s Small Claims Court from 1988 to 2013, died May 29 at a hospital in Washington. The cause was pancreatic cancer, said her husband, Jack Vardaman.

Mrs. Vardaman, a Washington resident, was born Marianne Fay in Glen Ridge, N.J. In the 1960s, she worked in U.S. News & World Report’s human-resources department. She hosted visiting Irish students through the Washington Ireland Program and established a scholarship program at Bath County High School in Hot Springs, Va. She was instrumental in getting Barton Lodge, a historic home in Hot Springs, restored and listed on the National Register of Historic Places in 2013.

Lucille Reifman, Education Department official

Lucille Reifman, 93, who spent 13 years at the U.S. Department of Education and retired in 1994 after serving as chief statistician and associate commissioner of the National Center for Education Statistics, died June 19 at a senior living community in Chevy Chase. The cause was a heart ailment, said a daughter, Ann Reifman.

Dr. Reifman, a Chevy Chase resident, was born Lucille Krauss in Brooklyn, N.Y. She was the director of program analysis at the National Institutes of Health in the mid-1960s and an associate commissioner of Medicaid in the late 1970s. She taught at American University and the Sorbonne in Paris. She was a founding member of the Bannockburn community in Bethesda.

Timothy A. Hanan, Mobil Corp. lobbyist

Timothy A. Hanan, 79, who headed Mobil Corp.’s government relations office in Washington from 1982 to 1995, died June 1 at a hospice in Washington. The cause was brain cancer, said his wife, Jean Hanan.

Mr. Hanan, a Washington resident, was born in New York. He was a senior partner at Macklin, Hanan and McKernan, an admiralty law firm in New York, from 1963 until joining Mobil in 1974. In recent years, he had been a real estate agent with Randall Hagner and TTR/Sotheby’s International. He was active in Democratic politics, particularly the presidential campaigns of Robert and Edward Kennedy. He was a past board member of Arena Stage and Ford’s Theatre.

Rita K. Amtmann, Laurel school secretary

Rita K. Amtmann, 69, who was secretary to the principal of Bond Mill and Montpelier elementary schools in Laurel, Md., and of Laurel High School, died May 15 at her home in Port Republic, Md. The cause was cancer, said a brother, Paul E. Kirby.

Mrs. Amtmann was born Rita Kirby in Washington, and she grew up in Oxon Hill, Md. In 2004, she retired after 15 years as a school secretary with the Prince George’s County’s public-school system. Earlier in her career, she had been an office secretary and computer operator at other schools and private businesses.

Oscar W. ‘Oley’ Olson, chaplain

Oscar W. “Oley” Olson, 91, a chaplain at St. Elizabeths Hospital in Washington from 1964 to 1986 who taught training programs in psychiatry and led patient counseling and therapy sessions, died June 18 at a nursing home in Arlington, Va. The cause was a blood infection, said a daughter, Linda Olson Peebles.

Chaplain Olson, an Arlington resident, was born in Lorain, Ohio. He was a member of First Congregational United Church of Christ in Washington and a volunteer at Blue Ridge Educational Center, a private day school for special-needs students in Front Royal, Va. A longtime resident of Dale City, Va., he moved to Arlington in 2013.

— From staff reports