National Museum of Nuclear Science & History
H. H. Denny worked for the H. K. Ferguson Company.
Zweifel worked at the 200 East Area at Hanford during the Manhattan Project.
Prisda Rosen was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
E. C. Webb worked for the Tennessee Eastman Corporation at the Y-12 Plant.