National Museum of Nuclear Science & History
Paul Willard was a staff worker at Los Alamos during the Manhattan Project.
Daniel D. Friel was a chemical engineer for the DuPont Company who joined the Manhattan Project at the University of Chicago in 1943.
J. Mulacha worked for the Edenfield Electric Company.
Marilyn (Evans) Howe was a research assistant in the Technical Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.