Contains construction footage of areas 100 and 200. Shots of administrative and supervisory personnel include Major General L.R. Groves (Commanding General, Manhattan District, United States Corp. of Engineers), Colonel F.T. Matthias (Area Engineer), Lt. Col. B.T. Rogers (Deputy Area Engineer), Major W.F. Sapper (Executive Officer), H.D. Riley (Major, Corp. of Engineers), E.G. Ackart (Chief Engineer, E.I. Du Pont de Nemours & Co.), G.M. Read (Assistant Chief Engineer), M.F.Wood (Manager, Construction division), F.H. Mackie (Manager, War Construction division), G.P. Church (Field Project Manager), T.L. Pierce (Assistant Field Project Manager), G.E. Bubb (AFPM, Field Construction), L.S. Grogan (Field Superintendent), W.E. Redman (Assistant, Field Superintendent), H.F. Nunn (Safety Superintendent), W.V. Krewatch (AFPM, Office Engineering), A.D. Day (Engineering Office Superintendent), E.L. Plenninger (Service Superintendent), T.W. Brown (Chief Accountant), G.E. Hillman (AFPM, Control), B.M. Taylor (Housing Superintendent), J.M. Wetherhold (Medical Supervisor), R.E. Burton (AFPM, Service and Housing) and H. Villa (Control Superintendent). \n