National Museum of Nuclear Science & History
Jean Ashin was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
J. A. Marshall worked for the Union Carbide & Carbon Corporation.
Ralph Nelson was a staff worker at Los Alamos during the Manhattan Project.
Josephine Winch was a research assistant in the chemistry division at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Groht worked for Stone and Webster Engineering Corporation.