National Museum of Nuclear Science & History
Julia Mangan worked for the A. S. Schulman Electric Company.
Ella Tyree was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
John worked at Los Alamos during the Manhattan Project, as Enrico Fermi‘s bodyguard. He moved with his wife and daughter to Los Alamos in 1943.
J. P. Hogan worked for Hanley & Company.
