Keywords: john mcgrew johnmcgrew world war one worldwarone pontoon pontoon bridge pontoonbridge pionier wwi ww1 busancy boat boot panton outdoor monochrome John McGrew was a member of the Photographic Section of the 5th Aero Group A.E.C. during WW I. This collection is comprised of aerial and ground photos the the WW I era. Repository: San Diego Air and Space Museum Archive John McGrew was a member of the Photographic Section of the 5th Aero Group A.E.C. during WW I. This collection is comprised of aerial and ground photos the the WW I era. Repository: San Diego Air and Space Museum Archive |