National Museum of Nuclear Science & History
Twohey worked for Stone and Webster Engineering Corporation.
June H. Roberts was a research assistant in the Instruments Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Frank Smith worked in the shop at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Harry Winkler worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Long worked for Stone and Webster Engineering Corporation.
