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Keywords from Image Description:
john mcgrew johnmcgrew world war one worldwarone feldkanone kanone weltkrieg mortar trench mortar trenchmortar the great war thegreatwar great war greatwar world war worldwari the first world war thefirstworldwar wwi ww outdoor tangle monochrome John McGrew was member of the Photographic Section of the th Aero Group A.E.C. during