National Museum of Nuclear Science & History
J. L. Holton worked for the Tennessee Eastman Corporation at the Y-12 Plant.
J. J. De Groot worked for the J.A. Jones Construction Company.
Leifermann worked in the 100 D Area at Hanford during the Manhattan Project.
Julius Sirota was an Americah chemist. He worked for the Substitute Alloy Materials on the Manhattan Project at Columbia University.
W. A. Swanson worked for the Union Carbide & Carbon Corporation.