National Museum of Nuclear Science & History
Chellberg worked for Stone and Webster Engineering Corporation.
Elizabeth Greisen accompanied her husband, physicist Kenneth Greisen, to Los Alamos during the Manhattan Project.
Frank Swoboda was a staff worker at Los Alamos during the Manhattan Project.
Ralph N. Devore served as a captain in the 393rd Bombardment Squadron. He was the airplane commander regularly assigned to the B-29 Next Objective.
Thomas R. Williams was a laborer at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
