National Museum of Nuclear Science & History
Marceil Roberson worked for the H. K. Ferguson 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.
F. J. McManus worked for the J.A. Jones Construction Company.
J. R. McIntyre worked for the Tennessee Eastman Corporation at the Y-12 Plant.