National Museum of Nuclear Science & History
McCall worked in the 100 F Area at Hanford during the Manhattan Project.
H. O. Ramey worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Louis Slotin (1910-1946) was a Canadian physicist. Shortly after World War II, he died from radiation sickness contracted during a dangerous experiment conducted at Los Alamos.
Fisch worked for Stone and Webster Engineering Corporation.