National Museum of Nuclear Science & History
J. Powell worked for the Union Carbide & Carbon Corporation.
Joseph H. Heartberg was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Edwin McMillan (1907-1991) was an American physicist and winner of the 1951 Nobel Prize in Chemistry.
Carruthers worked in the United States Engineer District Office.
Valentin Padilla was a staff worker at Los Alamos during the Manhattan Project.
