George F. Seng

Army Dentist

George F. Seng, 59, an Army dentist who retired as a colonel in 1991, died of lung cancer Aug. 22 at home in Chevy Chase.

Col. Seng's 26-year military career included service with the Army Institute of Dental Research at Fort Meade and an assignment as director of combat casualty care and research at Fort Detrick.

Col. Seng served in Vietnam and Germany and had lived in the Washington area for 18 years.

He was born in Pine Bluff, Ark., and grew up in St. Louis.

Col. Seng graduated from the University of Missouri, earned a dental degree at the University of Tennessee and a master's degree and a doctorate in pharmacology at Georgetown University.

He was an adjunct professor of pharmacology at Georgetown University Medical School.

After his military retirement, Col. Seng directed several general practice and residency programs across the country. He was vice chairman of the newly created department of dental medicine at the University of Medicine and Dentistry of New Jersey.

He had been a consultant and program evaluator for the American Dental Association's Commission on Dental Accreditation, a member of the ADA's national board test construction committee and a master in the Academy of General Dentistry.

Survivors include his wife, Monica Seng of Chevy Chase; his mother, Lois Seng of Chesterfield, Mo.; a sister; and a brother.

William R. Long

CIA Official

William R. Long, 82, a communications engineer who retired in 1973 after 25 years with the Central Intelligence Agency, died of cancer Aug. 26 at his home in North Potomac.

Mr. Long was a native of Washington and a graduate of Central High School. He studied telecommunications at George Washington University and Catholic University before joining the CIA in 1948.

He spent part of his career in charge of communications engineering for the CIA in South America, Taiwan, Germany, Iran and the Philippines.

He was also an avid sportsman, photographer, amateur radio operator and sports car racer and collector.

Survivors include his wife of 43 years, Dorothy M. Long of North Potomac; three children, Stacy Long Cowen of Richmond, Michael Long of Costa Mesa, Calif., and Steven Long of Potomac; and seven grandchildren.

Allan W. Anderson

Electrical Engineer

Allan W. Anderson, 81, an electrical engineer who worked at the Defense Department for 23 years before retiring in 1979 as a radio frequency manager, died of coronary heart disease Aug. 19 at his home in Montgomery Village.

Mr. Anderson, who had lived in the Washington area since 1951, was born in Worcester, Mass. He attended George Washington University before starting his career as an electrical engineer with the Federal Communications Commission in 1940.

He served in the Navy as a radio instructor during World War II, then returned to the FCC after the war.

He took a job with the Defense Department in 1956.

He was a ham radio operator for many years and a technical consultant for the U.S. Coast Guard and the Federal Emergency Management Agency.

Survivors include his wife, Regina Anderson of Montgomery Village; five children, David Anderson of Tokyo, Marilyn Anderson of Vienna and Allan Anderson Jr., John Anderson and Susan Anderson, all of Montgomery Village; and six grandchildren.

William Edward Lang

Air Force Sergeant

William Edward Lang, 69, a retired Air Force staff sergeant who later worked for the Fairfax Post Office, died of heart ailments Aug. 13 at home in Arlington.

Mr. Lang was born in Saranac Lake, N.Y. He served 20 years in the Air Force before retiring in 1968, and his career included duty in Alaska, England, Germany and Vietnam. He participated in the 1948 Berlin Airlift.

After leaving the Air Force, he settled in Arlington and worked 20 years at the Fairfax Post Office, where his work included mail room assignments.

He was a member of the Elks, the American Legion and the Moose lodge.

Survivors include two brothers.

Lawrence E. Duvall

D.C. Licensing Director

Lawrence E. Duvall, 88, past director of the old D.C. Department of Occupation and Professions, died of cancer Aug. 27 at his home in Alexandria.

For about seven years until his retirement in 1969, Mr. Duvall headed the department, which encompassed 20 licensing and regulatory commissions, boards and committees. Earlier, he served 11 years as special assistant to the president of the D.C. Board of Commissioners.

A fourth-generation Washingtonian, he was born in Georgetown and graduated from Gonzaga College High School and George Washington University law school. He began his career as a clerk for the D.C. division of sanitation.

He was a past member of and Eucharistic minister at St. Ann's Catholic Church in Washington and a member of St. Louis Catholic Church in Alexandria.

His wife of 60 years, Evelyn Sutton Duvall, died in 1997. Survivors include his second wife, Patty Stabler Duvall of Alexandria; two children from his first marriage, Diantha Esch of Vista, Calif., and Sharon Holmes of Alexandria; a stepdaughter, Kay Dorman of Squantum, Mass.; six grandchildren; and seven great-grandchildren.