National Museum of Nuclear Science & History
J. L. Cawood worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Seymour Calvert served for 11 months in the Special Engineering Detachment at Los Alamos. He specialized as a chemical engineer, and carried out experiments with beryllium that were often dangerous.
Edward F. “Ed” Hammel was an American chemist. Hammel had just completed his Ph.D. at Princeton University when he joined a Canadian heavy water project sponsored by the school in 1941.
Marshall worked in the 300 Area at Hanford during the Manhattan Project.
Simeon T. Cantril (1908-1959) was an American physician. He was born on February 17, 1908 in Hyrum, Utah.
