National Museum of Nuclear Science & History
J. R. Hatfield worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John Chipman was an American engineer. Chipman was born in 1897 in Tallahassee, Florida. He received B.
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.