William E. Cummins, 69, a retired associate technical director for ship performance at the David W. Taylor Naval Ship Research and Development Center in Bethesda, died Nov. 3 at his home in Damascus, Md. He had cancer.

Dr. Cummins, an authority in ship hydrodynamics theory and ship motion theory, received the Navy's Distinguished Civilian Service Award in 1976. Other honors included the Navy's Meritorious Civilian Service Award in 1970 and the David W. Taylor Award for Outstanding Scientific Achievement in 1972. In 1974, he received the Davidson Gold Medal, which is the Society of Naval Architects and Marine Engineers' highest award for scientific achievement in ship research.

He was a pioneer in theoretical research on submarine suction forces under a seaway, ship wave resistance and techniques for determining the sea-keeping characteristics of surface ships.

A native of Lawrenceburg, Ky., Dr. Cummins earned a degree in naval architecture at the Webb Institute in Brooklyn, N.Y. He received a doctorate in mathematics at American University.

He moved to the Washington area in 1941 and went to work for what became the David W. Taylor Naval Ship Research and Development Center. During World War II, he served in the Navy and was assigned to the center.

After the war, he remained at the center as a civilian naval architect. He became head of the Seaworthiness Branch in 1953. He later was chief of the Seaworthiness and Fluid Dynamics Division. He was promoted to associate technical director in 1964 and remained in that position until he retired in 1979.

Survivors include his wife, Ida Cummins of Damascus; one son, Walter Cummins of Hudson, N.H.; and one daughter, Barbara Sangster of Wellesley, Mass.

DR. FREDERICK Y. DONN,

69, a retired Washington physician who had a private practice in surgery for 34 years, died of congestive heart failure Nov. 4 at Suburban Hospital. He lived in Washington.

Dr. Donn, a fifth-generation Washingtonian, graduated from Roosevelt High School. He attended George Washington University, where he also earned his degree in medicine.

During World War II, he served in the Army. He later worked at Veterans Administration hospitals in Chicago and Bath, N.Y. He completed his training in cancer surgery during the late 1940s.

Dr. Donn began his practice in general and oncologic surgery in 1952. His hospital staff appointments included Suburban and Holy Cross hospitals, where he was chief of surgery from 1973 to 1977. He also had been a clinical professor of surgery at Georgetown University. He retired in 1986.

He was a fellow of the American College of Surgeons and a member of the American Board of Surgery, the American Medical Association and the Montgomery County Medical Society.

Dr. Donn was a past president of the Montgomery County unit and the Maryland division of the American Cancer Society.

He was a member of the Naval Masonic Lodge No. 4, the Shriners and Almas Temple.

Survivors include his wife, the former Nora Anne Stuart, of Washington; two daughters, Anne Stuart Donn of Washington and Mary Graham Donn of Alexandria, and one sister, Maryan Donn Smith of Oakton.

EDWARD HARVEY FAWSETT,

71, a retired treasurer with the Washington Star, died Nov. 4 at the Chevy Chase Retirement Center and Nursing Home. He had cancer.

Mr. Fawsett, a lifelong resident of Washington, graduated from Western High School and the University of Florida.

He worked briefly as an examiner with the Home Loan Bank Board before joining the Star as the assistant comptroller in 1943. He retired about 1978.

Mr. Fawsett was a founder of the Tal-Star Co., a data processing firm.

He was a past treasurer and vestryman of St. Alban's Episcopal Church.

Survivors include his wife, Talulah D. Fawsett of Springfield; two daughters, Judith Wilder of Daytona Beach, Fla., and Jane L. Fawsett of Washington; two sons, Robert H. Fawsett of Great Falls and Clifford C. Fawsett of Gaithersburg; four granddaughters, and one great-granddaughter.

MICHAEL B. FORMAN,

29, a retired letter carrier with the U.S. Postal Service and a former waiter at the Straw Boss, a restaurant in the Holiday Inn in College Park, died of cancer Nov. 2 at George Washington University Hospital.

Mr. Forman, a resident of Hyattsville, was born in Philadelphia. When he was 18, he moved to the Washington area. He graduated from Northwood High School in Silver Spring and attended the University of Maryland.

Mr. Forman went to work for the Postal Service in 1983 and retired in 1986 for reasons of health.

His hobbies included white-water rafting.

Survivors include his mother, Leonore Evans of Philadelphia; his father, Ronald Forman of Rockville; one brother, Adam Forman of Rockville; two sisters, Meredith Forman of Rockville and Jody Skale of Philadelphia; and one grandmother, Rae Forman of Silver Spring.

CORNELIUS (NEIL) HARRIS,

48, a distributor with Quality Snax of Maryland Inc. in Hyattsville for the last 10 years, died of cancer Oct. 30 at the Prince George's Medical Center. He lived in Forestville.

Mr. Harris was born in Washington and graduated from the old Chamberlain Vocational High School.

He went to work in the early 1960s as a distributor for Frito-Lay Inc. He worked for the Manns Potato Chip Co. for about five years before joining Quality Snax in 1977. He remained with the firm until his death.

During the 1970s, Mr. Harris also had owned and operated a barbershop.

He was member of the Fire Flies Social Club.

His marriage to Janice Harris ended in divorce.

Survivors include two daughters, Dena Cabell of Forestville and Tonya Harris of Washington; his mother, Ora Harris of Washington, and two grandchildren.

ANGELO CELIA,

58, who came to this country from his native Sicily in 1949 and founded a brickwork and masonry company, died of cancer and lung ailments Nov. 3 at Providence Hospital.

Mr. Celia, a resident of Silver Spring, was born in Santa Maria di Licodia. His business was the Celia Construction Co. and he remained the head of it until his death.

Survivors include his wife, Mary Celia, and two brothers, Dante and Joseph Celia, all of Silver Spring.