National Museum of Nuclear Science & History
H. H. Denny worked for the H. K. Ferguson Company.
Howard Lange was the Curator in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Treadwell worked at the 100-B and 100-D Areas at Hanford during the Manhattan Project.
A. L. Longshore worked for the United States Engineer District Office.