National Museum of Nuclear Science & History
H.W. was a consultant at Metallurgical Laboratory in Chicago during the Manhattan Project.
Lomie F. Caho was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
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.