National Museum of Nuclear Science & History
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.
Long worked for Stone and Webster Engineering Corporation.
Attended Iowa State University.
Frederick Trapnell was a consultant at the Metallurgical Laboratory in Chicago during the Manhattan Project.