National Museum of Nuclear Science & History
Beggs worked in the United States Engineer District Office.
Attended the City College of New York.
John D. Hopper served as a civilian in Project Alberta.
The following are excerpts from “Converging Lines,” a genealogy and family history book researched and written by Norma McKinney, as well as oral recollections from her in 2011 and Charles’ remembrances to his grandson in 1990 for an eighth grade report.