National Museum of Nuclear Science & History
J. M. Allen worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Frank E. Keene was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
M. M. Litowitz served in the 390th Air Service Group.
A. J. Keesing worked for the Union Carbide & Carbon Corporation.
Edward J. Fredrick was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.