National Museum of Nuclear Science & History
H. B. Marcum worked for the Union Carbide & Carbon Corporation.
Gross worked at the 100-D Area at Hanford during the Manhattan Project.
Dee McCullough began working as an instrument technician at Hanford in early 1944. As a former sound engineer, McCullough was tasked with installing nuclear safety monitors on the reactors at Hanford.
C. J. Klein worked for Clinton Laboratories at the X-10 Reactor.
