National Museum of Nuclear Science & History
L. G. Ahrens worked in the 100-B Area at Hanford during the Manhattan Project.
P. N. Smith worked for the H. K. Ferguson Company.
Katherine Gnjec was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Reba Holmberg grew up in Robertsville, Tennessee, and experienced its claiming by the federal government for the Manhattan Project.