National Museum of Nuclear Science & History
Rolland Perry was a staff worker at Los Alamos during the Manhattan Project.
Thomas Velasquez was a staff worker at Los Alamos during the Manhattan Project.
Joseph Hirschfelder was an American physicist. He held doctorates in physics and chemistry from Princeton University.
George Mahfouz joined the Manhattan Project in 1943 when he was offered a job at the Houdaille-Hershey nickel plant in Decatur, Illinois.
Marvin Shelley worked for Clinton Laboratories at the X-10 Reactor.
