The Dec. 17 obituary of Lawrence Bernard Kirstein misidentified his second wife, Lizbeth Greene. (Published 12/18/02)

John M. Aitchison

Physicist

John M. Aitchison, 97, a physicist who worked for Johns Hopkins University's Applied Physics Laboratory in Laurel for 23 years before retiring in 1970, died Dec. 13 at the Wilson Health Care Center of the Asbury Methodist Village in Gaithersburg. He had pneumonia.

Mr. Aitchison, who was born in Scotland, came to the United States as a child. He graduated from Ohio Wesleyan University, where he also received a master's degree in physics.

He taught physics at what was then the Case Institute of Technology in Cleveland from 1930 to 1934 and at the University of California, Los Angeles until 1943. He then did anti-submarine research at Columbia University during World War II. He came to the Washington area in 1945.

Before moving to Asbury in the late 1990s, he had lived 27 years at Leisure World in Silver Spring, where he served on and chaired committees dealing with its operation and was a member of the Interfaith Chapel.

Mr. Aitchison was a member of Woodside United Methodist Church in Silver Spring.

Survivors include his wife of 71 years, Lucile, of Asbury Methodist Village; a son, James, of Cherry Valley, Calif., a daughter, Barbara Collins of Lakeville, Conn.; five grandchildren; and six great-grandchildren.

Jerome F. Peters

Navy Captain

Jerome F. Peters, 86, a retired Navy captain who served as a dentist before teaching dentistry at the University of Maryland and later at Howard University, died of congestive heart failure Dec. 13 at the National Navy Medical Center in Bethesda.

Dr. Peters specialized in periodontology during a Navy career that stretched from 1941 to 1964. He served aboard destroyer tenders and in China with a Marine Corps contingent. He was also assigned to the National Navy Medical Center.

He was an associate professor at the University of Maryland in 1964 and 1965. He headed the periodontology department at Group Health Association in Washington from 1966 to 1976 and taught at Howard University from 1976 to 1979.

Dr. Peters, a Montgomery Village resident, was a native of Masontown, Pa. He was a graduate of West Virginia University and the Northwestern University dental school.

He was a diplomate of the American Board of Periodontology and a member of the American Academy of Periodontology.

Survivors include his wife of 55 years, Delrose Peters of Montgomery Village; three sons, Michael, of Bethesda, Andrew, of Eldersburg, Md., and Christopher, of Bethesda; a brother; and a grandson.

Carlos Orellana Segarra

FAA Officer, Businessman

Carlos Orellana Segarra, 77, a former officer of the Federal Aviation Administration who since 1985 had operated an engineering and management consulting business, died of cancer Dec. 11 at Casey House Hospice in Rockville.

Mr. Segarra, who lived in Silver Spring, was born in Ecuador. He joined the U.S. Merchant Marine as an Ecuadorean during World War II and served as an assistant engineer on ships on the north Atlantic route to the Soviet Union. He settled in the Washington area after the war and became a U.S. citizen in 1949.

He was a research assistant at the law library at the Pentagon and then at the engineer research library at Fort Belvoir.

In 1967, he joined the FAA, where he retired in 1984 as manager of the publishing and graphics management branch.

The next year he started his own company, Systems Flow Inc., a Rockville-based engineering services and management consulting firm. He was its president and chief executive until his death.

Survivors include his wife of 47 years, Ollin Pritchard Segarra of Silver Spring; a daughter, Monique Segarra of Rhinebeck, N.Y.; a stepdaughter, Cheryl Mattingly of Santa Monica, Calif.; a sister; and a grandson.

Lawrence Bernard Kirstein

Social Worker, Developer

Lawrence Bernard Kirstein, 68, a former social worker and real estate developer, died of complications related to pneumonia Dec. 11 at home in Washington.

Mr. Kirstein was born in Washington and graduated from Wilson High School and the University of Maryland. In 1959, he became a partner with his brother, Richard, in the operation of Richmarr Construction, which developed multiple housing communities, apartments and office buildings in Northern Virginia.

In 1977, he changed careers, earned a master's degree in social work at Catholic University and then became a clinical social worker at the Loudoun County Mental Health Center in Leesburg. In the mid-1980s, he co-founded the Chevy Chase Psychiatric Center, where he was a therapist in private practice. Through the late 1990s, he was a supervisor of social workers.

He supported child-care operations, arts programs and health programs in the Adams Morgan area of Washington.

He was a member of Washington Hebrew Congregation and Woodmont Country Club.

His marriages to Joan Alper and Andrea Kirstein ended in divorce.

Survivors include his wife, Lorraine Oerth-Kirstein of Washington; and three daughters from his fist marriage, Kerry Kirstein of Arlington, Andrea Kirstein of Washington and Kathryn Kirstein of Portland, Ore.

Joseph H. S. Smith

Army Colonel

Joseph H. S. Smith, 80, a retired Army colonel who commanded procurement agencies and helped consolidate contract management services of defense and government departments, died of congestive heart failure Dec. 6 at Virginia Hospital Center-Arlington.

Col. Smith, who lived in Falls Church, was a native of Waycross, Ga., and graduate of Northeastern University. He received an MBA from Babson College in Wellesley, Mass., and a doctorate in business administration from American University.

He served 31 years in the Army, beginning in 1943. In the late 1950s, he helped establish a support command in Europe to supply and repair military equipment. He headed the Army Procurement Agency in Vietnam during the war there and commanded the procurement agency in Rome to supply materials to NATO nations.

When he retired from active military duty in 1974, he was executive assistant to the deputy director of the Defense Contract Administrative Services of the Defense Supply Agency.

In retirement, he was chairman and president of the Northern Virginia Association of Realtors.

He was a Mason and a member of the Military Order of the World Wars and the Harvard Business School Club of Washington.

His military decorations include a Legion of Merit and a Bronze Star.

Survivors include his wife of 54 years, Ruth A. Smith of Falls Church.

Seth Turner Crawford

CIA Officer

Seth Turner Crawford, 79, a retired Central Intelligence Agency operations officer, died of heart ailments Dec. 14 at home in in Markham, Va.

Mr. Crawford served 30 years in the CIA before retiring in 1978, and his career included postings in Paris, Rome, Haiti and Southeast Asia. He also had worldwide roving assignments.

In retirement he operated a farm in Markham, where he specialized in reforestation and conservation.

He was born in Boston and graduated from Harvard University. During World War II, he served in the Army in Europe.

He was a former president of the Leeds Ruritan Club.

Survivors include his wife of 27 years, Aileen Baltazzi Crawford of Markham; a brother, a sister and four stepchildren.