National Museum of Nuclear Science & History
A. L. Barber worked for the H. K. Ferguson Company.
R. L. Lauderdale worked for the Tennessee Eastman Corporation at the Y-12 Plant.
O. R. "Big" Simpson was a second lieutenant in military intelligence in charge of convoys carrying plutonium from Hanford to Fort Douglas, Utah.
John Mendl was a member of the 1st Ordnance Squadron in the 509th Composite Group stationed on Tinian Island in the Pacific.
