National Museum of Nuclear Science & History
Winfield Sylvester was a staff worker at Los Alamos during the Manhattan Project.
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.
Helena Calloway was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
R. Warden worked for the Edenfield Electric Company.
Fowler worked for Stone and Webster Engineering Corporation.