National Museum of Nuclear Science & History
J. T. Calvert worked for the Union Carbide & Carbon Corporation.
Asa H. Brown served in the 1st Ordnance Squadron.
Julius “Osty” Ostspowicz was a glassblower in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
J. H. Seivers worked for the Tennessee Eastman Corporation at the Y-12 Plant.