Arnold F. Clark

Arnold F. Clark, a Lab retiree and 55-year resident of Livermore, died Nov. 13. He was 93.

Born April 27, 1916, he attended Swarthmore College, where he studied physics. He earned his Ph.D. in physics at Indiana University in 1941 and went on to attend a post doctorate program at the University of California, Berkeley.

Clark was asked to join what became the Manhattan Project. After the war years, his scientific interests led him to Berkeley, Rochester, N.Y., Carnegie Tech, and, finally, in 1954, the Livermore Lab. He retired from LLNL in 1984, though he continued consulting for some years later.

During his successful career as a research physicist, he contributed to the development and making of cyclotrons and an accelerator. His experimental research was strongly focused on nuclear physics, including X-ray vulnerability and quarks, but also included work on solar energy and solid state physics.

Clark played with the Livermore-Amador Symphony for nearly 35 years in the violin, viola or cello sections. In his retirement years, he joined his wife in volunteer work supporting the string music programs in elementary and middle schools. He enjoyed playing chamber music with other musicians regularly at his home. He also enjoyed hiking, biking, skiing and bird watching.

He is survived by his wife, Marion; sons, Nathaniel, Stephen and Leighton; and eight grandchildren, John, Paul, Michael, Bethany, Meredith, Philip, Benjamin and Sophie.

A gathering for “Memories and Music” is planned for Jan. 23 at 2:30 p.m. at the Presbyterian Fellowship Hall.

Memorial donations may be made in Clark’s name to the Livermore-Amador Symphony Association, P.O. Box 1049, Livermore, CA 94551 or Hope Hospice, 6377 Clark Ave., Suite 100, Dublin, CA 94568