Jasper Brown Jeffries

After earning his degrees, Jeffries worked at the Met Lab from 1943 to 1946 as physicist on the Manhattan Project.^[1] While working at the Met Lab, Jeffries signed the Szilárd petition that requested President Truman to avoid dropping atomic bombs on Japan.^[1][5] After the Manhattan project, atomic bombs were developed, and World War II ended.^[4] After working at the Met Lab, Jeffries served as a Professor and Chair in the Department of Physics at North Carolina Agricultural & Technical University, from 1946 to 1949.^[3] Next, from 1951 to 1959, Jeffries was a Senior Engineer for the Control Instrument Company.^[4] Then, from 1963 to 1971 Jeffries was an Assistant Professor of Mathematics at Westchester Community College.^[4] Jasper Brown Jeffries was promoted to professor and became chair of department in 1971.^[3]

Jasper Brown Jeffries died on July 16, 1994, in White Plains, NY. When Jeffries died, he was eighty-two years old.^[1]