Murray Bowen, 77, a psychiatrist who pioneered the use of family therapy to treat a variety of mental illnesses, died of respiratory failure due to lung disease Oct. 9 at his home in Chevy Chase.

While on the staff of the National Institute of Mental Health from 1954 to 1959, Dr. Bowen was among the first in his profession to work with live-in schizophrenics and their parents. As a result of this work, he developed a psychiatric theory that views the family as an emotional unit rather than concentrating on individuals within the family.

In 1959, Dr. Bowen joined the staff of the Georgetown University Medical Center, where he served as clinical professor of psychiatry and director of the Georgetown Family Center. In these capacities he developed and extended his views and practice of family therapy, which has become widely used throughout the psychiatric community.

Dr. Bowen served as visiting professor at the University of Maryland Medical School and as professor and chairman of the division of family and social psychiatry at the Medical College of Virginia at Richmond. There, in the mid-1960s, he pioneered in the use of closed-circuit television and videotapes of his interviews with patients.

Dr. Bowen was born in Waverly, Tenn. He graduated from the University of Tennessee and its medical school, and he did his medical internship at Bellevue Hospital in New York and at Grasslands Hospital in Valhalla, N.Y. During World War II, he was a physician in the Army Medical Corps in the United States and Europe.

While serving in the Army, Dr. Bowen developed an interest in psychiatry. Upon his discharge he did psychiatric training at the Menninger Foundation in Topeka, Kan., from 1946 to 1949, then remained on the Menninger staff until 1954, when he moved to the Washington area and joined the staff of the National Institute of Mental Health.

He also opened a private psychiatric practice in Chevy Chase in 1954 that came to specialize in family therapy. He continued in this practice until his death.

Dr. Bowen was author of a 1978 book, "Family Therapy and Clinical Practice," and of about 50 articles, book chapters and professional papers, based on his theories of human behavior. Central to his theory was the conviction that human behavior should be studied within the context of all forms of life and that human beings should not looked at as unique.

Dr. Bowen was a founder and the first president of the American Family Therapy Association, a life fellow of the American Psychiatric Association and the American Ortho Psychiatric Association, a life member of the Group for Advancement of Psychiatry and a diplomate in psychiatry of the American Board of Psychiatry and Neurology.

He was named alumnus of the year by the Menninger Foundation in 1985.

Survivors include his wife, LeRoy Ellis Bowen of Chevy Chase; four children, Susan Bowen Manne of Cincinnait, Joanne Bowen Gaynor of Williamsburg, Va., Kathleen Bowen Noer of Frederick and Charles Murray Bowen of Seattle; and four grandchildren.


Army Colonel

Lawrence Vinton Hoyt, 65, a retired Army colonel and an area resident since the mid-1970s who was a veteran of the Korean and Vietnam wars, died of cardiopulmonary arrest Oct. 6 at Reston Hospital Center.

Col. Hoyt, who lived in Reston, was born in New York City and grew up in Michigan. He graduated from the United States Military Academy at West Point in 1948 and was commissioned in the infantry.

During the Korean War, he served in combat as a company commander. His later assignments included duty as an intelligence officer in Turkey. He served as a military adviser in Vietnam in 1970 and 1971. His last assignment was as an intelligence officer at the Army Electronics Research and Development Command in Washington.

Col. Hoyt retired from active duty in 1978. His military decorations included the Silver Star, two Bronze Stars, five Air Medals and two Purple Hearts.

He worked here as a security consultant until about 1980. His hobbies included buying and selling rare books of military history and collecting stamps.

He was a member of the West Point Association and a past president of the Washington area chapter of the Military Order of the Purple Heart.

His marriage to Catherine Menish Hoyt ended in divorce. His second wife, Joan King Hoyt, died in 1963. His third marriage, to Arlyce Griffith Hoyt, ended in divorce.

Survivors include his wife, Dorothy Hoyt of Reston; two children by his second marriage, Patricia Gray of Woodbridge, and Keith R. Hoyt of Spokane, Wash.; two daughters by his fourth marriage, Lauren A. Hoyt and Elizabeth Alden Hoyt, both of Reston; and four grandchildren.


Church Volunteer

Sheila M. Langevin, 58, who had worked on the restoration of old buildings at Georgetown Visitation Convent, died of complications of asthma Oct. 8 at Sibley Memorial Hospital.

Mrs. Langevin, a lifelong Washington resident, was a graduate of Georgetown Visitation and Trinity College here.

For about the last seven years, she had done repainting, replastering and fixing of furniture at Georgetown Visitation. She had also done volunteer work at the Zacheus Soup Kitchen for about the last 15 years.

She was a member of Blessed Sacrament Catholic Church in Washington, where she had organized Outreach Sundays, in which parishioners donated money, food and clothing to the House of Ruth and the soup kitchen.

Survivors include her husband, Dr. Robert W. Langevin of Washington; eight children, Kathleen L. Stevens of Alexandria, Eileen L. Fitzgerald of Bethesda, Elizabeth L. Scalley of Arnold, Rosemary L. DeGioia of Wheaton, Margaret Langevin of Boston, and Mary Sheila L. Keegan, Anne Marie Langevin and Stephen Langevin, all of Washington; her parents, retired D.C. Superior Court judge and Mrs. John J. Malloy of Washington; a sister, Regina M. Shriver of Springfield, Mass.; a brother, J. Kevin Malloy of Annapolis; and six grandchildren.