National Museum of Nuclear Science & History
Arthur Sievert worked for Hanley & Company.
Snyder worked at the 300 Area at Hanford during the Manhattan Project.
Leon Love was a metallurgist for the Cook Electronic Company in Chicago, IL, and worked under contract with the Manhattan Engineer District.
Theodore Petry (1924-2018) was a laboratory helper at the Chicago Met Lab. He was recruited while still in high school.