National Museum of Nuclear Science & History
Brown worked for Stone and Webster Engineering Corporation.
John Arthur "Jack" Robinson was a machinist and instrument maker at the Clinton Engineering Works in Oak Ridge, Tennesse in 1943.
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.
W. E. Rossnagel worked for the Union Carbide & Carbon Corporation.