National Museum of Nuclear Science & History
J. A. King worked for the Roane-Anderson Company.
J. A. Speas worked for the J.A. Jones Construction Company.
Louis Rosen (1918-2009) was an American physicist. A native New Yorker and the son of Polish immigrants, Rosen was personally selected to work on the Manhattan project in Los Alamos while a graduate student in physics at the Pennsylvania State University.
