National Museum of Nuclear Science & History
M. K. Walsh worked for the Roane-Anderson Company.
R. L. Kirk worked for the United States Engineer District Office.
Pasquale Baldasaro was a radio operator aboard Straight Flush, one of the B-29 Superfortress aircraft that participated in the atomic bombing of Hiroshima.
Engel worked in the United States Engineer District Office.
Burton worked for Stone and Webster Engineering Corporation.