National Museum of Nuclear Science & History
L. D. Percival King was an American physicist. After receiving his Ph.D. in Physics from the University of Chicago, King became an instructor in the Physics Department at Purdue University.
Esther (Green) Floth worked as a secretary for General Leslie Groves during the Manhattan Project in Washington, DC.
M. O. Swanson worked for the United States Engineer District Office.
L. M. Genung worked for the Roane-Anderson Company.