National Museum of Nuclear Science & History
R. Petyko worked for the Roane-Anderson Company.
Attended the Cooper Union for the Advancement of Science and Art.
Julius Sirota was an Americah chemist. He worked for the Substitute Alloy Materials on the Manhattan Project at Columbia University.
Mary McCormick was a secretary at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
