National Museum of Nuclear Science & History
Stewart worked for Stone and Webster Engineering Corporation.
Girdler worked at the 300 Area at Hanford during the Manhattan Project.
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.