National Museum of Nuclear Science & History
Mathis worked for Stone and Webster Engineering Corporation.
R. O. Irwin worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Katherine Gnjec was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
R. R. Tippy worked for the Tennessee Eastman Corporation at the Y-12 Plant.
