National Museum of Nuclear Science & History
Marcelline Peltier was a staff worker at Los Alamos during the Manhattan Project.
Myrtle E. Karcher was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Phillip Fineman was a research associate in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.