National Museum of Nuclear Science & History
Frank Pratt worked for the J.A. Jones Construction Company.
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.
H. E. Evans worked at the 100-D Area at Hanford during the Manhattan Project.
Lenora Stallings was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
W. L. Brown worked for the Tennessee Eastman Corporation at the Y-12 Plant.