National Museum of Nuclear Science & History
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.
Conley worked at the 100-B Area at Hanford during the Manhattan Project.
Lassila worked in the 100 B and D Areas at Hanford during the Manhattan Project.
