National Museum of Nuclear Science & History
Frei worked for Stone and Webster Engineering Corporation.
Henry Howard Roerkohl was commissioned as a 2nd lieutenant in the QM Corps Reserve on Jan 16, 1940. On Nov 9, 1942 Howard was transferred to the Northwest Service Command (NWSC), located in Whitehorse, Canada in the Yukon Territory.
Samuel Gosnell, Jr. served in the 603rd Air Engineering Squadron.