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

Charles Land, cancer scientist

Charles Land, 80, a retired scientist at the National Cancer Institute who specialized in the statistics of radiation-risk assessment, died Jan. 25 at his home in Lisbon. The cause was pneumonia and cardiorespiratory failure, said his wife, Vera Land.

Dr. Land was born in San Francisco. He was a statistician with the old Atomic Bomb Casualty Commission in Hiroshima, Japan, and an assistant professor at ­Oregon State University before joining the National Cancer Institute in 1975. He received awards from NIH and other health organizations before retiring in 2009 as principal investigator in the radiation epidemiology branch. On retirement, he moved from Rockville, Md., to Portugal.

Rex Roller, truck driver

Rex Roller, 76, a truck driver who retired from Seneca Excavating and Landscaping four years ago, died Jan. 25 at a hospital in Alexandria, Va. The cause was injuries from a fall at his home in Herndon, Va., said his wife, Julie Gray-Roller.

Mr. Roller was born in Kansas City, Kan., and had lived in the Washington area since 1965. He worked for 13 years at Seneca Excavating and Landscaping in Sterling. Earlier, he had served in an Army Special Forces unit, been a D.C. firefighter and worked in Herndon’s Public Works Department.

Donald Lichty, NASA official

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Donald Lichty, 89, who retired in 1980 as NASA’s director of administration, died Jan. 23 at a hospice center in Palm Coast, Fla. The cause was multiple systems atrophy, said a daughter, Jean Lichty.

Mr. Lichty was born in Washington and was a 55-year resident of Arlington, Va., before moving to Florida in 2009. He began his federal career in the 1950s as a personnel security analyst with the U.S. Information Agency and was an investigator for the Civil Service Commission. In the 1960s, he was chief of security at NASA headquarters. He also was a youth baseball coach and a winner of several local golf tournaments.

Frank Haas, HUD officer

Frank Haas, 89, an officer in the Department of Housing and Urban Development who retired in 1985 as deputy director of the office of community viability, died Jan. 6 at his home in Springfield, Va. The cause was congestive heart failure, said a son, Dan Haas.

Mr. Haas was born in New York City. He worked 25 years for HUD and predecessor agencies. He was a former chairman of the Kings Park Civic Association in Springfield and a volunteer preparer of meals for the homeless.

Thomas Pluta, veterans board counsel

Thomas Pluta, 67, a lawyer for the Board of Veterans Appeals from 1983 to 2011 at what became the Department of Veterans Affairs, died Jan. 23 at a hospital in Washington. The cause was cancer, said his wife, Marianne Mulcahey.

Mr. Pluta, a resident of Bethesda, Md., was born in Ludlow, Mass. He joined the State Department in 1976, and his assignments included the U.S. Embassy in Finland.

Peter Weidenbruch Jr., Georgetown law professor

Peter Weidenbruch Jr., 88, a professor at Georgetown University’s law school who retired in 2008 after 43 years on the faculty and who specialized in tax law and trusts and estates, died Jan. 31 at a hospital in Germantown, Md. The cause was complications from pneumonia, said a daughter, Barbara Constable.

Mr. Weidenbruch was born in Evanston, Ill. He spent his early career as an attorney for the Internal Revenue Service and for Mobil Oil.

In 2007, the law school created the Peter Weidenbruch Jr. professorship of business law.

Mr. Weidenbruch lived in Rockville, Md., and was a past member of board of the Baltimore Orioles.

Robert Barrett, NSA analyst and cryptologist

Robert Barrett, 92, an intelligence analyst and cryptologist at the National Security Agency from 1953 to 1984 who also ran the NSA’s Russian school and served three tours in Germany, died Jan. 20 at his home in St. Michaels, Md. The cause was congestive heart failure, said a daughter, ­Melissa Barrett.

Mr. Barrett was born in Pontiac, Mich. He taught Russian history at the University of Maryland as an adjunct faculty member. He enjoyed sailing, chess and tennis.

Charles Oddenino, GSA real estate appraiser

Charles Oddenino, 90, a real estate appraiser for the General Services Administration from 1968 to 1986, died Jan. 25 at his home in Arlington, Va. The cause was cancer, said his daughter, Lynn Oddenino.

Mr. Oddenino was born in Aroda, Va., and in 1943 became an apprentice machinist at the Washington Navy Yard. Later, he sold real estate for several brokerages before opening his own business, Oddenino Realty, in 1958. It specialized in residential real estate and insurance in Northern Virginia. After his retirement from the GSA, he continued buying and selling real estate until shortly before his death.

Stanley Rollison, auto repair shop owner

Stanley Rollison, 63, who had owned and operated Stan Rollison’s Automotive Services, an auto repair shop in Woodbridge, Va., since 1994, died Jan. 22 at a hospital in Falls Church, Va. The cause was a brain tumor, said his wife, Toni Rollison.

Mr. Rollison was born in Oil City, Pa., and grew up in Woodbridge. He worked as a manager at Goodyear Tire & Rubber Co. and started a tire business with a brother before opening his repair shop. He supported local athletic teams and booster clubs and volunteered for Vehicles for Change, a nonprofit group that provides cars to low-income families.

Elay Narayananlibrarian

Elay Narayanan, 88, a librarian at the Library of Congress in the late 1960s and later at Bowie State University until his retirement in 1994, died Jan. 24 at a hospital in Bethesda, Md. The cause was respiratory failure, said a daughter, Sushil Narayanan.

Mr. Narayanan, a resident of Potomac, Md., was born in Kerala, India, and spent his early career in the Indian foreign service.

— From staff reports