National Museum of Nuclear Science & History
Toomey worked for Stone and Webster Engineering Corporation.
Johnson worked at the 100-B Area at Hanford during the Manhattan Project.
F. R. O'Brien worked for the Tennessee Eastman Corporation at the Y-12 Plant.
A. V. Hawkins worked for the Roane-Anderson Company.
George Miller was a research assistant at the University of Chicago Met Lab. He was present when Chicago Pile-1 went critical on December 2, 1942.