National Museum of Nuclear Science & History
Velva Irwin worked as a Calutron girl at the Y-12 Plant at Oak Ridge, TN. She was only 16 when she began working on the Manhattan Project.
Walter J. Slussar served in the First Ordnance Squadron.
John was a scientist at Los Alamos during the Manhattan Project. In 1949, John married Jean L. Balagna, who worked in the Los Alamos Lab.
