National Museum of Nuclear Science & History
E. W. Smith worked for the Union Carbide & Carbon Corporation.
Irwin P. Sharpe was born in 1921 and died just short of his 100th birthday in 2021. He was recruited for the Manhattan Project by his employer, General Electric, after he graduated from the University of Michigan with a degree in engineering in 1942.
D. W. Cardwell worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Winzenburg worked for Stone and Webster Engineering Corporation.
Rupea worked at the 300 Area at Hanford during the Manhattan Project.