Jason R. Silverman, 74, who was director of the Washington metropolitan region of the B'nai B'rith's Anti-Defamation League for 18 years before retiring in 1978, died of cancer July 5 at Shady Grove Adventist Hospital.

Mr. Silverman was a native of Boston and received a law degree from Boston College. He served with the Army in the Pacific during World War II, attaining the rank of major. He joined the B'nai B'rith staff in Boston after the war and transferred here in 1960.

A former Bethesda resident, he spent 20 years here before moving to Mexico in 1980. He later settled in Florida. A resident of Lauderhill, Fla., he was in Washington for medical treatment.

Survivors include his wife, Valerie, of Lauderhill; a son, Stephen, of San Diego; two daughters, Jean Felts of Darnestown, and Toby Behar of Bethesda; a sister; a half-brother; and six grandchildren.

EDWARD T. KELLAHER

Congressional Official

Edward T. Kellaher, 72, chief of property supply for the U.S. House of Representatives since 1966 and a recipient of the John W. McCormack Award for Excellence, died of cancer July 5 at Georgetown University Hospital.

Mr. Kellaher, a resident of Alexandria, began his career on Capitol Hill in 1961 after working for the New York finance committee of John F. Kennedy's campaign for the presidency. He went to work in the Office of the Clerk of the House of Representatives and was appointed chief of property supply five years later.

Born in New York City, Mr. Kellaher graduated from St. Peter's College in Jersey City, and the Fordham University Law School. During World War II, he served in the Army Signal Corps. He later worked in an export business in New York.

Mr. Kellaher was a member of the boards of directors of the Wright Patman Congressional Federal Credit Union, the National Democratic Club and the Users Corporation. He was a member of the D.C. and Federal bar associations, the Friends of Ireland, the Fordham of Washington Association and the Capitol Hill First Friday Club, of which he was a past president.

Survivors include his wife, Eleonore Kellaher, whom he married in 1944, of Alexandria; four children, Ken Kellaher of Smithtown, N.Y., Don Kellaher of Crofton, Mary Gengler of Glen Rock, N.J., and Susan Kellaher of Alexandria; a brother, John P. Kellaher of Arlington; two sisters, Kathryn Miller of Florida and Anne Kellaher of New York City; and 11 grandchildren.

LEROY B. SNYDER

Police Officer

Leroy B. Snyder, 65, a former member of the D.C. police department and a former deputy sheriff in Prince George's County, died July 4 while attending a family reunion in Weatherly, Pa. He had heart ailments.

Mr. Snyder, who lived in Landover Hills, was born in Washington. He was in the Army in World War II and served in the China-Burma-India theater.

He was a member of the D.C. police department from 1948 to 1959 and the Prince George's Sheriff's Department from 1964 to 1971, when he retired because of a heart condition.

Mr. Snyder was a member of the Knights of Harmony, which is a barbershop chorus, Masonic Lodge No. 179 in Hyattsville, Veterans of Foreign Wars Post No. 8950 in Greenbelt, the Disabled American Veterans, the Association of Retired Police of the District of Columbia, the Boy Scouts of America and St. John Evangelical Lutheran Church in Riverdale.

Survivors include his wife, Viola G. Snyder, whom he married in 1951, of Landover Hills; four children, Leola G. Snyder of Silver Spring, Bradley A. Snyder of Alexandria, William A. Snyder of Waldorf and David L. Snyder of Upper Marlboro; a brother, Albert H. Snyder of Alexandria; and five grandchildren.

PATRICIA D. FRISBY

Secretary and Volunteer

Patricia D. Frisby, 60, a retired executive secretary with the Congressional Budget Office who also was a volunteer with the Stepping Stones shelter for the homeless in Rockville and with Sibley Memorial Hospital, died of cancer July 5 at her home in Bethesda.

Mrs. Frisby was born in Washington. She graduated from Holy Cross Academy, Immaculata College and American University.

Beginning about 1980, she was a secretary for the American University School of Nursing and then for Crown Agents Ltd., which is an import-export business, the admissions office of Sibley Memorial Hospital and finally for the Congressional Budget Office. She was there for about a year before retiring at the end of 1989 for reasons of health.

Mrs. Frisby was active in prayer groups at Our Lady of Lourdes Catholic Church and a member of the parish of St. Jane de Chantal Catholic Church in Bethesda.

Her marriage to John S. Frisby ended in divorce.

Survivors include four children, John Hayes Frisby of Washington, Deborah Marie Frisby of Chevy Chase, and Francis Xavier and Maureen Patricia Frisby, both of Bethesda; two sisters, Mary Giarratana of Darien, Conn., and Dolores Gilroy of New Carrollton; and a brother, Leo W. Dunn Jr. of Stevensville, Md.

RICHARD L. ANDREWS

Anne Arundel Resident

Richard Lewis Andrews, 98, a former board member of Anne Arundel General Hospital in Annapolis and a longtime resident of Anne Arundel County, died July 6 at his home in Harwood, Md., after a stroke.

Mr. Andrews was a native of London. He served in the British army during World War I and participated in the Gallipoli campaign. His military decorations included the Military Cross.

After the war, he became a partner in a brokerage firm in Shanghai. During World War II, he and his wife, Hope Nelson Andrews, were held captive in China by the Japanese.

They came to the United States in 1947 and settled in Maryland. They lived in Chestertown for a year before moving to Harwood.

Mr. Andrews served on the board of Anne Arundel General Hospital in the 1960s. He had been a board member of the Chase Home, a retirement home in Annapolis, and a member of the South River Club in Harwood.

His wife died in 1984. There are no immediate survivors.

NORBERT W. SEIDNER

Army Officer

Norbert W. Seidner, 86, a retired lieutenant colonel in the Army Quartermaster Corps who later worked for the Army Materiel Command, died of cancer July 5 at Walter Reed Army Medical Center.

Col. Seidner, a resident of Washington, was born in Vienna, Austria. He grew up in New York City.

In 1926, he enlisted in the Army. He served at various posts in this country until World War II. He was commissioned in the Quartermaster Corps in 1942 and served in New Guinea and the Philippines during the war. His postwar assignments included service at Fort Myer in Arlington, in Japan during the Korean war, and at Governor's Island, N.Y., where he retired in 1954.

He then moved to Washington and worked for the Army as a civilian in 1956. He was in the foreign sales section of the Army Materiel Command when he retired in 1973.

Survivors include his wife of 54 years, Mary M. Seidner of Washington; a daughter, Mary L. West of Alexandria; and five grandchildren.

STEWART W. TOWLE JR.

Army Colonel & Northrop VP

Stewart Warren Towle Jr., 88, a retired Army Air Forces colonel who was a former vice president and head of the Washington office of Northrop aviation, died July 5 at his home in Washington after a heart attack.

He joined Northrop here in 1946 and retired as vice president and Washington office chief in 1966. He remained a consultant with Northrop until completely retiring in the mid-1970s.

Mr. Towle, who came here in the 1930s, was a native of Clinton, Iowa. He received his wings shortly after his 1923 graduation from the U.S. Military Academy at West Point. He also was a graduate of the Army War College and what is now the Army Command and General Staff College. He was a fighter pilot in England during World War II.

His wife, the former Joan Platt, died in 1985. His survivors include a son, Charles M., of Washington; four grandchildren; and two great-grandchildren.

DeWITT W. ZOOK

Insurance Salesman

DeWitt W. Zook, 86, a retired life insurance salesman who worked for the Sun Life Insurance Co. of Canada and the Continental American Insurance Co., died of a heart attack July 6 at the Jeffersonian Manor nursing home in Charles Town, W.Va.

Mr. Zook, a resident of Bethesda, was a fourth-generation Washingtonian. He graduated from Western High School. During World War II, he served in the Army.

He began his career with the Sun Life Insurance Co. in 1924. In 1951, he switched to Continental American. He retired in 1971.

Mr. Zook was a member of the Reciprocity Club of Washington, the Takoma Park Lions Club and Pilgrim Lutheran Church in Bethesda.

Survivors include his wife of 61 years, Susan R. Zook of Bethesda; two children, DeWitt W. Zook Jr. of Potomac and Suzanne Zook, a State Department official who is stationed in Lima, Peru; six grandchildren; and 11 great-grandchildren.

MARK DOBSON

Marriott Executive

Mark Dobson, 34, a lawyer who worked on international hotel development at the Marriott Corp. in Bethesda, died June 26 at Sibley Memorial Hospital. He had AIDS.

Mr. Dobson, who lived in Washington, was born in Yonkers, N.Y. He graduated from Georgetown University and its law school. He also received a master's degree in international affairs from Georgetown.

He was a lawyer at the Washington firm of Duncan, Allen & Mitchell from 1981 to 1984 and spent two of those years working in Zaire. He then joined the Marriott Corp., where he worked on the development of hotels in several countries, including Poland.

Survivors include his mother, Bertha Dobson of Montvale, N.J.; two brothers, Neil and David, both of Montvale; three sisters, Alice Coscia of Fairfield, N.J., Claire Dobson-Emmons of Montvale and Jane Dobson of Montclair, N.J.; and a grandmother, Anna Dobson of Westwood, N.J.

RALPH CAVANAUGH WRIGHT

Soil Conservation Official

Ralph Cavanaugh Wright, 86, a retired chief of administrative services for the Soil Conservation Service in the Department of Agriculture, died of congestive heart failure July 5 at Suburban Hospital.

Mr. Wright, a resident of Bethesda, was born in Salem, Ind. He graduated from Indiana University. He served in the Navy in World War II.

In 1934, he went to work for the Department of Agriculture in Indiana. He was transferred to Washington in 1938 and served as director of the Agricultural Resettlement Administration. He later was assigned to the Soil Conservation Service. He retired in 1970.

Mr. Wright was a Mason.

Survivors include his wife of 55 years, Grace Elizabeth Wright of Bethesda, and a son, Ralph C. Wright Jr. of Kensington.

MABEL W. HALL

Longtime Arlington Resident

Mabel Weldy Hall, 92, a member of the Neighbors Club of Arlington and St. Peter's Episcopal Church in Arlington, died July 5 at the Sleepy Hollow Manor nursing home in Annandale. She had Parkinson's disease.

Mrs. Hall had lived in Arlington more than 50 years before entering the nursing home in November 1989. She taught school in her native Iowa before coming here in the 1920s.

She attended George Washington University. She had been a secretary with the Veterans Administration in the 1920s.

Her husband, Norman J. Hall, died in 1982. Her survivors include two daughters, Patricia McLamara of Falls Church and Kathleen Gillette of Dale City; five grandchildren; and three great-grandchildren.