National Museum of Nuclear Science & History
Leroy Hartmann (1922 – 1944) was an electrical engineer in the Special Engineer Detachment Manhattan District CE in Oak Ridge.
Ernest (Ernie) Tremmel was born on September 20, 1916 in Wisconsin. He graduated from the University of Wisconsin-Madison with a B.
G. H. McLarty worked for the Kellex Corporation at the K-25 Plant.
