National Museum of Nuclear Science & History
Ina Martin worked for the United States Engineer District Office.
Frank Mason worked for the United States Engineer District Office.
Andrew Welch was a janitor at the Chicago Met Lab during the Manhattan Project.
Everett Ellis worked for the H. K. Ferguson Company.
Warren Sheehan joined Mound Laboratory in April 1956. He spent the first half of his career in health physics, or radiation safety, where he developed a new methodology for determining the amount of plutonium in urine.