National Museum of Nuclear Science & History
H. M. Nappen worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.
Arthur Robert Sayer was a physicist. He had a doctorate from Harvard in Astronomy, and worked on the Manhattan Project at Los Alamos.
