National Museum of Nuclear Science & History
M. K. Walker worked for the Fercleve Corporation.
Seymour Calvert served for 11 months in the Special Engineering Detachment at Los Alamos. He specialized as a chemical engineer, and carried out experiments with beryllium that were often dangerous.
Garner worked for Stone and Webster Engineering Corporation.
Robert Woodward was a staff worker at Los Alamos during the Manhattan Project.
