National Museum of Nuclear Science & History
Mars worked for Stone and Webster Engineering Corporation.
Arnold Grubbe (1904-2002) was an engineer working for the civilian contractor Crane Company in Oak Ridge, Tennessee.
Hennie Schallis was a staff worker at Los Alamos during the Manhattan Project.
Leslie A. Ellerman served in the 603rd Air Engineering Squadron.
Holeman worked at the 300 Area at Hanford during the Manhattan Project.
