National Museum of Nuclear Science & History
J. H. Sievers worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Fredrick “Fred” D. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
George F. Popp served in the 603rd Air Engineering Squadron.
David S. Brown served in the 1st Ordnance Squadron.
W. M. Brobeck worked for the Tennessee Eastman Corporation at the Y-12 Plant.
