Edna M. Sypult

Amanda P. Stein

Amanda Stein was a research assistant in the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Arthur J. Monroe

Henry Yevlove

Henry Yevlove worked for Harold Urey’s group at Columbia University as a junior scientist. He later changed his last name to “Young.

Helen Thomson

Helen Thomson was a techinician in the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.