National Museum of Nuclear Science & History
H. T. Welty, Jr. worked for the Roane-Anderson Company.
Opaline Calhoun was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
V. J. McDonald worked for the Comstock-Bryant Electric Company.
Christiansen worked at the 100-B Area at Hanford during the Manhattan Project.
