National Museum of Nuclear Science & History
N. B. Walsh worked for the United States Engineer District Office.
Robert E. Holse served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Laggin’ Dragon.
Carl Helmholz (1915-2003) was an American physicist involved with the Manhattan Project. Helmholz was born on May 24, 1915 in Evanston, Illinois.
O. R. "Big" Simpson was a second lieutenant in military intelligence in charge of convoys carrying plutonium from Hanford to Fort Douglas, Utah.
