National Museum of Nuclear Science & History
Howard Egan worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Alan Upson Seybolt was a metallurgist who worked at Los Alamos during the Manhattan Project. Seybolt married Dorothea “Dot” Hoover Seybolt, and the couple had two sons.
Gilbert worked at the 200 West Area at Hanford during the Manhattan Project.