National Museum of Nuclear Science & History
Ridley worked at the 300 Area at Hanford during the Manhattan Project.
Andrew H. MacMahon was the Chief Property Officer of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Henry Faul was a geologist working on Enrico Fermi's team at the University of Chicago. He was responsible for prospecting uranium ore in Colorado and Utah.
