National Museum of Nuclear Science & History
O. R. "Big" Simpson was a second lieutenant in military intelligence in charge of convoys carrying plutonium from Hanford to Fort Douglas, Utah.
Julian N. Bernacchi had three main assignments in the Manhattan Project. The most significant was as the Security Officer of Dr.
John Vach was a guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Attended Purdue University.
