National Museum of Nuclear Science & History
J. E. Sampson worked for the United States Engineer District Office.
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.
Attended Northeastern University.
John W. Marden was deputy research director at the Westinghouse Electric Corporation Lamp Plant in Bloomfield, New Jersey.
