National Museum of Nuclear Science & History
Robert Hobart worked for the United States Engineer District Office.
Melvin A. Miller was a draftsman at the University of Chicago Met Lab. In 1946, he sketched two famous drawings of Chicago Pile-1 based on the descriptions of scientists who were present when it went critical.
Galbraith worked at the 300 Area at Hanford during the Manhattan Project.
Murray worked for Stone and Webster Engineering Corporation.