National Museum of Nuclear Science & History
Pfennig worked for Stone and Webster Engineering Corporation.
Boggess worked at the 100-F and 200 East Areas at Hanford during the Manhattan Project.
H. W. Brackney worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Arthur Daniel Schelberg (1921-2009) was an American physicist. Schelberg was born in New York City. He studied at physics in Princeton, and was recruited to join the Manhattan Project at Los Alamos in 1943.
