National Museum of Nuclear Science & History
Arnold Grubbe (1904-2002) was an engineer working for the civilian contractor Crane Company in Oak Ridge, Tennessee.
Francis A. Pellegrino served as a sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned first to Luke the Spook and later to Big Stink.
Seckendorff worked for Stone and Webster Engineering Corporation.
