Chan Huy Dao

Physician

Chan Huy Dao, 80, an obstetrician-gynecologist who immigrated to the United States from Vietnam in 1967, died March 11 at Manor Care nursing home in Arlington. He had Parkinson's disease.

Dr. Dao, a resident of McLean, received his medical degree from the University of Hanoi in his native Vietnam. He fought with Vietnamese forces against the French. When Vietnam was partitioned after the French defeat at Dien Bien Phu in 1954, he left Communist-ruled North Vietnam and settled in Saigon, where he practiced until he came to the United States in 1967.

He settled in Washington and repeated his medical internship and residency at Washington Hospital Center and the University of Maryland Hospital in Baltimore. Later, he practiced medicine at Springfield Hospital in Sykesville, Md., while living in Ellicott City.

He retired in 1990. In 1994, he settled in McLean.

Survivors include his wife, Pham Le Trinh Dao of McLean; five sons, Thanh Dao of Silver Spring, Tuan Dao of Worcester, Mass., Trien Dao of France, John Dao of Chevy Chase and Tin Dao of Annapolis; and six grandchildren.

Mattie Beale Belfield Miller

Teacher

Mattie Beale Belfield Miller, 94, who taught school in Washington for 10 years and was a substitute teacher in Bethesda for 22 years, died March 8 at the Methodist Home of Washington of complications following surgery for a broken hip.

Mrs. Miller was born in Washington. She graduated from Eastern High School and Wilson Normal School. For 10 years after college, she was a substitute teacher at Thomson Elementary School in Washington. For 22 years, she was a substitute at Westbrook Elementary School in Bethesda.

She was an accomplished pianist who regularly played before meals at the Methodist Home, where she had lived for the past 16 years. For 30 years before that, she had lived in the Green Acres neighborhood of Bethesda.

She was a member of Metropolitan Memorial United Methodist Church in Washington and Daughters of the American Revolution.

Survivors include two sons, Gary Wayne Miller of Rockville and Richard Lee Miller of Arlington; seven grandchildren; and a great-grandchild.

Joseph Debnam Harris

Computer Analyst

Joseph Debnam Harris, 48, a former Defense Department computer analyst, died March 9 at home in Arlington. He had diabetes.

Mr. Harris was born in Fort Monmouth, N.J. He graduated from the University of Florida

He settled in the Washington area about 1979.

He had been a computer analyst at the Pentagon for about six years when he retired on disability six years ago after being struck by an automobile.

Earlier he was a clerk at Tower Villas condominiums in Arlington.

Survivors include his parents, retired Army Lt.Col. Carl M. Harris and Lee D. Harris, and a brother, Dr. David Harris.

Richard Jackson Theobald

Editor

Richard Jackson Theobald, 90, an editor for U.S. News & World Report magazine in Washington for 20 years from the 1960s to the 1980s, died of colon cancer March 2 at Creighton Manor Hospice in Timberville, Va.

Mr. Theobald was born in Galion, Ohio. He graduated from Ohio State University and attended Harvard University's law school. During World War II, he was a Navy lieutenant commander in the Pacific.

He was a newspaper editor in Ohio, Colorado, New York and Hopewell, Va., before moving to the Washington area and joining U.S. News in the 1960s.

On his retirement from U.S. News, he lived in Scotland for a period, then in the late 1980s returned to this country and lived in Winchester. In the 1990s, he moved to Mount Jackson, where he lived until his death.

His marriages to Marion Theobald, Katherine Theobald and Erica Theobald ended in divorce. His fourth wife, Lillie Theobald, died in 1995.

Survivors include two children by his second wife, Gretchen Theobald of Washington and Sprague Theobald of Newport, R.I.; a son by his third wife, Peter Theobald of Lancaster, Pa.; a stepson from his fourth marriage, Philip Bailey of New Hampton, N.H.; and seven grandchildren.