National Museum of Nuclear Science & History
John P. Flannery worked for H.K. Ferguson Co. and Morrison Knudson. Co. on construction at Oak Ridge, TN during the Manhattan Project.
Franklin MacGregor served as a second lieutenant in the 393rd Bombardment Squadron. He was regularly assigned to the B-29 Top Secret.
S. H. Barrett worked for the Tennessee Eastman Corporation at the Y-12 Plant.
