National Museum of Nuclear Science & History
John von Neumann was a Hungarian-American mathematician, physicist, and polymath. A child prodigy, by the age of eight he was familiar with calculus and knew Ancient Greek.
Turping worked at the 200 East Area at Hanford during the Manhattan Project.
Edward Walsh worked for the United States Engineer District Office.
Petty worked in the 100 B and D Areas at Hanford during the Manhattan Project.