National Museum of Nuclear Science & History
Don Simpson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.
Kay Manley, Canadian-born, came to the United States in 1933 to study. She and her husband John Manley were at the Manhattan District in Chicago, when her husband was personally called by Leo Szilard and asked to move from the Met Lab to Los Alamos.
Raycliffe C. Davis was a graduate of Central College in Pella, Iowa. He joined the Army while living in Cedar Rapids, IA, and was assigned with Special Engineering Detachment in Oak Ridge, TN in April 1944.
Henry Howard Roerkohl was commissioned as a 2nd lieutenant in the QM Corps Reserve on Jan 16, 1940. On Nov 9, 1942 Howard was transferred to the Northwest Service Command (NWSC), located in Whitehorse, Canada in the Yukon Territory.
