National Museum of Nuclear Science & History
Gertrude Steel was a junior chemist at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Bernard Weinstock was an American chemist. Weinstock was born in New York City. He studied at Columbia University, where he became part of the research team led by Harold Urey.
Leonard Krouldis was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Antonio Sandoval (1918-2015) was a janitor at Los Alamos during the Manhattan Project. Sandoval remembered, “It was like being a prisoner.
James I. Pegram served in the 393rd Bombardment Squadron.