National Museum of Nuclear Science & History
J. P. Hogan worked for Hanley & Company.
H. T. Hunsicker worked for the Midwest Piping and Supply Company.
John Henry Manley (1907-1990) was an American physicist. Manley worked on the Manhattan Project almost from its beginning, starting at the Metallurgical Lab at the University of Chicago.
H. J. Ratjen worked for the Tennessee Eastman Corporation at the Y-12 Plant.
