National Museum of Nuclear Science & History
Lewin worked in the 100 D Area at Hanford during the Manhattan Project.
Margaret Strombeck was a swtichboard operator at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Treadwell worked at the 100-B and 100-D Areas at Hanford during the Manhattan Project.
Lyle Crowe worked for the J.A. Jones Construction Company.