National Museum of Nuclear Science & History
E. J. Sekeres served in the 509th Headquarters.
Creedon worked for Stone and Webster Engineering Corporation.
Thomas Farrell (1891 – 1967) was a major general in the US Army. Farrell was hand-picked by General Groves to serve as his deputy, or as the Deputy Commanding General of the Manhattan Project.
W. C. Patrick worked for the United States Engineer District Office.
Ellsworth Risley was a staff worker at Los Alamos during the Manhattan Project.