National Museum of Nuclear Science & History
Crisp worked for Stone and Webster Engineering Corporation.
Karl Walther was a glassblower for Columbia University and Brookhaven National Laboratory. During the Manhattan Project, Walther worked as a senior glassblower at the Nash Garage Building at Columbia, where scientists developed the gaseous diffusion process.
Harold H. Richardson served in the 1027th Air Material Squadron.
Lawrence Thomas Abraham was a contractor who served as the construction superintendent at Los Alamos during the Manhattan Project.