National Museum of Nuclear Science & History
H. G. Arnett worked for the Roane-Anderson Company.
Beatrice Coleman worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Hoff worked at the 300 Area at Hanford during the Manhattan Project.
Julian N. Bernacchi had three main assignments in the Manhattan Project. The most significant was as the Security Officer of Dr.
Frederic Showalter served in the First Ordnance Squadron.
