National Museum of Nuclear Science & History
Edward M. Costello served as a captain in the 393rd Bombardment Squadron. He was the aircraft commander regularly assigned to the Laggin’ Dragon.
O. R. "Big" Simpson was a second lieutenant in military intelligence in charge of convoys carrying plutonium from Hanford to Fort Douglas, Utah.
Rozel E. Curtis was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
