National Museum of Nuclear Science & History
Jack Pierard was a communications clerk in the Hanford Engineering Works from January 1944 through the end of the war.
Gilbert Plass was a Canadian physicist. Plass was born in 1922 in Toronto. He received a B.S. in physics from Harvard University before being hired to work on the Manhattan Project at the Chicago Met Lab, where he worked as an associate physicist.
H. L. Longcrier worked for the J.A. Jones Construction Company.
L. L. Lee worked for the United States Engineer District Office.