National Museum of Nuclear Science & History
R. B. Jacobs worked for the Kellex Corporation at the K-25 Plant.
Groft worked at the 300 Area at Hanford during the Manhattan Project.
John M. Sprecher was a chemical engineer. During the Manhattan Project, he worked for DuPont in Wilmington, DE.
Anita Lieberman Katz was a clerk who worked on the Manhattan Project from May 1943 to January 1946. She was born in New York City in 1920 and graduated from Hunter College.
