National Museum of Nuclear Science & History
William “Willie” H. Zachariasen was a physicist and consultant at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Elvin Olsen was a staff worker at Los Alamos during the Manhattan Project.
Alllen Junkin worked for the J.A. Jones Construction Company.
Lester Orlan Keen worked as an engineering draftsman at Hanford during the Manhattan Project. His son, Jack Keen, was a young boy at the time.