National Museum of Nuclear Science & History
Cummings worked for Stone and Webster Engineering Corporation.
Leander J. Baur served as a staff sergeant in the 393rd Bombardment Squadron. He was the radio operator regularly assigned first to Luke the Spook and later to Big Stink.
J. J. Haynie worked for the J.A. Jones Construction Company.
William (W.) Gregory Marley was a British physicist and photography expert, who was part of the British Mission to Los Alamos during the Manhattan Project.
Charles Helmers worked for the J.A. Jones Construction Company.