Gorrell's History of the American Expeditionary Forces Air Service, 1917-1919 Publisher: NARA Short Description: NARA M990. Historical narratives, reports, photographs, and other records that document administrative, technical, and tactical activities of the Air Service in the American Expeditionary Forces during World War I. Series: B Series Description: Air Service Activities with the French, British, and Italians Volume: 1 Volume Description: History of the Air Service in Italy and of American Pilots on the Italian Front http://www.footnote.com/documents/14539621/gorrells-history-aef-air-service/ For anyone interested in the history of the American Expeditionary Force's Air Service history by Col Gorrell .... theres a listing for it on the American National Archives website - it's an almost complete digitized version at footnote.com. ..... and it's free !!