Radar Developer

Edward Bowles, 92, an electrical engineer and microwave specialist who played a key role in spurring Allied development of radar technology in World War II, died Sept. 5 at a nursing home in Weston, Mass., after a series of strokes. He had Parkinson's disease.

During the war, he was a consultant to Secretary of War Henry L. Stimson and became a liaison between Washington and radar scientists working at the Radiation Laboratory at the Massachusetts Institute of Technology. He set up a laboratory at Langley Field, Va., where Army bombers were equipped with MIT-developed radar.

Mr. Bowles pioneered the development of a method for maintaining a precise radio frequency through use of a tuning fork. He began teaching at MIT in 1921 and organized a division of electrical communications at the university in the mid-1920s.



Edward M. Sewell, 67, a Philadelphia pediatrician who was a national authority on tuberculosis in children and who was elected president of the American Lung Association, died of pneumonia Sept. 5 at a hospital in Philadelphia. He had lymphoma.

In 1963, he wrote a book with Edith Lincoln, "Tuberculosis in Children," that remains the definitive textbook on the subject, colleagues said.

He had been a Phildelphia pediatrician since 1950.

At the time of his death, Dr. Sewell was professor of pediatrics at the Thomas Jefferson University Medical College and was an adjunct medical professor in pediatrics at the School of Medicine at the University of Pennsylvania.


Benedictine Abbot

The Rev. Leonard Vickers, 55, a member of the Order of St. Benedict and former prior-administrator and abbot of St. Anselm's Abbey in Washington, died Sept. 2 in England. The location and cause of his death were not reported.

A native of England, where he was ordained in 1960, Father Leonard came to Washington in 1983 as prior-administrator of St. Anselm's. He served as abbot for two years before returning to England in 1989. At the time of his death, he was abbot of Douai Abbey in Berkshire.



Shih Yi P'an, 79, a pharmacologist who had helped develop the antibiotic oxytetracycline, died of cancer Sept. 4 at his home in New London, Conn.

He was a member of the group of scientists working for Pfizer Inc. that developed the drug in 1950. Pfizer marketed the drug under the trade name Terramycin.


Country Musician

Kennedy Jones, 90, a country music pioneer credited with creating the guitar style popularized by Chet Atkins and Merle Travis, died Sept. 5 in Cincinnati. The cause of death was not reported.

The distinctive guitar technique uses a thumb pick and bare fingers simultaneously playing melody, rhythm and bass. Mr. Jones was believed to have created it in the 1920s and taught it to Ike Everly, father of the Everly Brothers. He also was said to have taught it to Travis, who then influenced Atkins and others, including Carl Perkins, George Harrison and Mark Knopfler.