National Museum of Nuclear Science & History
Painton worked for Stone and Webster Engineering Corporation.
Joseph H. Heartberg was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Leandro Ortiz was a staff worker at Los Alamos during the Manhattan Project.
Green worked at the 300 Area at Hanford during the Manhattan Project.
Ernest O. Lawrence (1901-1958) was an American scientist and 1939 recipient of the Nobel Prize in Physics for his invention of the cyclotron.