National Museum of Nuclear Science & History
Davis worked in the United States Engineer District Office.
Morris S. Kaplan was a Chemical Engineer for the Houdaille-Hershey Company in Decatur, Illinois. Kaplan was born in Massachusetts in 1921 and grew up in Chicago, Illinois.
Helgeson worked at the 300 Area at Hanford during the Manhattan Project.
Cummings worked for Stone and Webster Engineering Corporation.