National Museum of Nuclear Science & History
Charles Levy was a first lieutenant in the 393rd Bombardment Squadron of the 509th Composite Group. He trained in Wendover, Utah, before leaving for Tinian Island.
George Placzek was a Czech physicist. He was born in Brno, Moravia, which was then part of Austria-Hungary but today is in the Czech Republic.
Virginia Ballard was born in Charleston, West Virginia. Her parents immigrated to the United States from Scotland.