Abigail Brill Hoopes, 49, an educational diagnostician at the Kingsbury Center, a private educational center in Washington, was killed July 11 in the crash of a small private plane in Kenya.

Mrs. Hoopes was on a photographic safari in East Africa when the accident occurred. Charles Tucker Battle and Jane Battle of Washington, who were traveling with Mrs. Hoopes, were hospitalized with injuries, but there were no other fatalities. Friends in Washington said the plane struck a mountain. Further details were unavailable.

A native of Wilmington, Del., Mrs. Hoopes had lived in Washington since 1973. She graduated from Bryn Mawr College and received a master's degree in psychology from Catholic University. Before moving here, she had lived in India, Malaysia and Lebanon, where her husband worked for Citibank.

She joined the staff of the Kingsbury Center in 1978.

Mrs. Hoopes was a past vice chairman of the board of trustees of the Potomac School in McLean. She also was a member of the Chevy Chase Club.

Survivors include her husband, David Hoopes, whom she married in 1961, and five daughters, Helen "Elly" Hoopes, Martha Hoopes, Nancy Hoopes, Wendy Hoopes and Rachel Hoopes, all of Washington; two brothers, Patrick Brill of Bethesda and John Brill of Providence, R.I.; and a sister, Nancy Harvey of Cape Elizabeth, Maine.

SUE F. SILVERMAN

Airports Official

Sue F. Silverman, 49, a former director of community relations for the Metropolitan Washington Airports Authority, died July 11 at Georgetown University Hospital. She had dermatomyositis, a disease that attacks the skin and the voluntary muscles.

Miss Silverman, a resident of Washington, joined the Airports Authority when it was created in 1984. An interstate compact agency similar to the Washington Metropolitan Transit Authority, it runs National and Dulles International airports.

Miss Silverman headed its community relations until last spring, when she joined the Federal Aviation Administration as special assistant to the executive director for systems development. She had worked for the FAA from 1963 to 1984, and she had helped in the creation of its office of consumer affairs.

A native of Shaker Heights, Ohio, Miss Silverman had lived in Washington since 1961. She was a graduate of Goucher College.

In the course of her career, she received the FAA Administrator's Award for Superior Achievement and several other honors, including the Goucher Alumnae Award for Distinguished Public Service.

She was a member of the National Press Club, the National Aviation Club and the Airport Operators Council International, and she contributed a number of papers to professional journals. She also was a member of the board of directors of the Goucher College Alumni Association and a volunteer driver with the American Red Cross.

Survivors include her parents, Alvin and Phyllis Silverman of Washington, and two sisters, Lorrie Samburg of McLean and Janie Culos of Potomac.

MARY BEECHER JENKINS

School Board President

Mary Beecher Jenkins, 73, a former president of the Charles County Board of Education and the board of trustees of Charles County Community College, died July 11 at the Charles County Nursing Home in LaPlata. She had Parkinson's disease.

Mrs. Jenkins also was a former member of the Board of Supervisors of Elections for Charles County. In addition, she was a member of the Maryland Republican State Central Committee and the National Federation of Republican Women, and was a past president of the Charles County chapter of the American Cancer Society.

A native of Indian Head and a lifelong resident of Charles County, Mrs. Jenkins graduated from Lackey High School. She worked in contracting and real estate businesses started by her husband, George Plowden Jenkins, until his death in 1969. She later worked for other businesses in Charles County. She retired in the early 1980s for health reasons.

Survivors include three children, Judith Jenkins Bloom of Indian Head, Bill Jenkins of Clements, Md., and Jennifer Jenkins Dean of Waldorf, Md.; a sister, Dorothy Beecher Artes of Indian Head; 11 grandchildren; and two great-grandchildren.

DONALD PETTUS CONWELL

Physician

Donald Pettus Conwell, 69, a retired physician in the U.S. Public Health Service who became an artist, died of a heart attack July 8 at Beverly Hospital in Beverly, Mass.

Dr. Conwell, who was stricken at his home in Hamilton, Mass., was born in Jasper, Ala. He graduated from Vanderbilt University and received his degree as a medical doctor at Vanderbilt. He received a doctorate at the Tulane University School of Public Health and also studied at the Harvard University School of Public Health.

From 1948 to 1952, Dr. Conwell was a medical missionary in the Belgian Congo, now called Zaire. He began his career in the Public Health Service in Kentucky in 1956. He was transferred to Washington in 1958 and served here until retiring in 1975.

Over the years, his assignments took him to Italy, Yugoslavia and Greece, and he served "on loan" for a period as assistant commissioner of health for New York City.

After his retirement, Dr. Conwell received a degree in art education from American University and became a painter. He moved to Hull, Mass., in 1979 and to Hamilton in 1982.

His first wife, Margaret Keyes Conwell, died in 1980.

Survivors include his wife, Anne Ryder Conwell of Hamilton; a son by his first marriage, John Edward Conwell of Hull; three stepchildren, William Henry Ryder of Columbia, Richard Evans Ryder of Farmington, Mich., and Barbara Ryder Johanson of Albion, Wash.; his mother, Elma Wells Conwell, and a brother, Williams Wells Conwell, both of Birmingham; and six grandchildren.

JAMES WILLIAM BONBREST III

Restaurateur

James William Bonbrest III, 54, a former co-owner of the original Clyde's restaurant on M Street in Georgetown and later an owner of restaurants in New York, died of cancer July 12 at the home of his mother in Chevy Chase.

Mr. Bonbrest, a resident of New York City, was born in Washington. He grew up in Chevy Chase. He graduated from Georgetown Preparatory School and attended Georgetown and Fordham universities. He served in the Army in the 1950s.

A designer and owner of restaurants, Mr. Bonbrest was a partner with Stuart Davidson in the first Clyde's, which opened in the 1960s. He also had interests in several other restaurants in this area. About 1970, he moved to New York. Among his restaurants there was the River Cafe. At the time of his death he was operating partner of the Laundry, a restaurant in East Hampton on Long Island.

His marriages to Katherine Kjerland and Patricia Donaldson Bonbrest ended in divorce.

Survivors include two children by his first marriage, Elizabeth Tracy Weber of New York City and Paris, and James W. Bonbrest IV of New York City; his mother, Mildred Bright of Chevy Chase; his father, James W. Bonbrest Jr. of Potomac; a brother, Franklyn H. Bonbrest of Alexandria; five half brothers, Thomas Bonbrest of Gaithersburg, Marc Bonbrest of Charlottesville, Barton Bonbrest of Philadelphia, and Paul and Peter Bonbrest, both of Potomac; and a granddaughter.

WILLIAM H. HOLST

Chemist

William H. Holst, 89, a retired chemical patent researcher at the U.S. Patent Office, died July 8 at Doctor's Hospital of Prince George's County. He had Alzheimer's disease.

Dr. Holst, who lived in Landover Hills, was a native of Granite City, Ill. He graduated from the University of Illinois, where he also received a master's degree in chemistry. He received a doctoral degree in chemistry from the University of Iowa.

During World War II, he served in the Navy. He worked on the development of a film used to protect weapons from deterioration while in storage.

After the war, he was a chemical researcher at the United Finish Co. in Massachusetts. He came to the Washington area in 1956, when he joined the Patent Office. He retired in 1980.

His hobbies included fishing and hunting.

Survivors include his wife of 53 years, Margaret Kirkham Holst of Landover Hills; three sisters, Anna Walker of Granite City, Clara Pryatel of Lorain, Ohio, and Mary Couch of Cleveland; and two brothers, John and Louis Holst, both of Collinsville, Ill.

JOHN CANDLER DAVIS

Episcopal Priest

The Rev. John Candler Davis, 82, an Episcopal priest who was rector at Meade Memorial Episcopal Church in Alexandria for 12 years before he retired in 1971, died of congestive heart failure July 5 at Alexandria Hospital.

Mr. Davis, who lived in Alexandria, was a native of North Carolina. He was a graduate of St. Augustine's College in North Carolina and Bishop Payne Divinity School in Petersburg, Va. He received a master's degree in comparative religions from Case Western Reserve University.

He was ordained in 1937 and served churches in North Carolina, New York and Ohio before coming to Meade Memorial in 1959.

From the time of his retirement until about 1975, he was an assistant priest at St. Mark's Episcopal Church and St. Clement's Episcopal Church, both in Alexandria.

From 1969 to 1975, Mr. Davis was an adjunct professor at the Virginia Theological Seminary in Alexandria. He was made a canon theologian to the bishop of Liberia in 1972.

Mr. Davis was a Rotarian and a 33rd degree Mason. He was a member of the Brotherhood of St. Andrew, the National Urban League, Omega Psi Phi fraternity and the NAACP.

His first wife, Ethel Marie Norris Davis, died in 1979. His second wife, Agatha Antoinette Hamilton Davis, died in 1984.

Survivors include a sister, Hattie Catherine Watts of Nantucket, Mass.

ALBERT M. McKENNEY

Geico Official

Albert M. McKenney, 68, a retired treasurer at Geico insurance company, died July 11 at Montgomery General Hospital of complications after surgery for gallstone pancreatitis.

Mr. McKenney, who lived in Silver Spring, was a native of the Philadelphia area. During World War II, he served in the Army Air Forces. He came to the Washington area in the late 1940s and graduated from Benjamin Franklin University, where he majored in accounting.

In 1949, he joined Wayne Kendrick & Co., a Washington accounting firm. He was a senior accountant there in 1954 when he left to become cashier at Geico. He was named treasurer in 1977 and retired in 1986. Since then, he had worked as a private investments manager and tax consultant.

Mr. McKenney was a board member at Benjamin Franklin University, and in 1987 he worked on the school's merger with George Washington University.

He was a member of the Society of Insurance Accountants and the Tax Executives Institute.

Survivors include his wife of 46 years, Frances Marie McKenney of Silver Spring; two sons, Douglas McKenney of Arlington and Albert "Pete" McKenney of Fairfax; a sister, Jane Edwards of Hatboro, Pa.; and a grandchild.