National Museum of Nuclear Science & History
Evelyn Manchester worked for the United States Engineer District Office.
Gilbert P. Church was a civil engineer and Project Manager at the Hanford site during the Manhattan Project.
H. F. Gibbs worked for the A. S. Schulman Electric Company.
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.