National Museum of Nuclear Science & History
George Royster was a civilian physicist working at the X-10 graphite reactor in Oak Ridge, Tennessee.
Gertrude Steel was a junior chemist at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Loew worked in the 300 Area at Hanford during the Manhattan Project.
Mary Karraker worked for the Tennessee Eastman Corporation at the Y-12 Plant.