National Museum of Nuclear Science & History
Florence Roache worked for the United States Engineer District Office.
Eugene Olsen was a staff worker at Los Alamos during the Manhattan Project.
Sanfranski worked at the 300 Area at Hanford during the Manhattan Project.
George Cowan joined the Manhattan Project in 1942 at the Met Lab as a chemist for Enrico Fermi’s group, and also worked for Columbia University.
William Ladniak worked for Clinton Laboratories at the X-10 Reactor.