National Museum of Nuclear Science & History
M. R. Pierce worked for the Kellex Corporation at the K-25 Plant.
H. S. Mantooth worked for the Tennessee Eastman Corporation at the Y-12 Plant.
E. S. Ryan, Jr. worked for the Poe Piping & Heating Company.
John P. Flannery worked for H.K. Ferguson Co. and Morrison Knudson. Co. on construction at Oak Ridge, TN during the Manhattan Project.
