National Museum of Nuclear Science & History
Felipe was a staff member at Los Alamos 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.
J. P. Valliant worked for the Union Carbide & Carbon Corporation.
W. H. Ray worked for Clinton Laboratories at the X-10 Reactor.