National Museum of Nuclear Science & History
Grim worked for Stone and Webster Engineering Corporation.
Francis Birch (1903-1992) was an American geophysicist. In 1942, Birch worked at the MIT Radiation Lab, which was tasked with radar development.
John Mench was assigned to the Special Engineer Detachment at Los Alamos where he worked as a pattern maker, creating wooden casts for metal work at the site’s foundry.
