Lt Charles Nelson, 102d Aero Squadron Commanding officer 2d Air Instructional Center, Tours Aerodrome,  France
Air Service, United States Army photograph
1918
Air Service, United States Army photograph, Gorrell's History of the American Expeditionary Forces Air Service, Series E Squadron Histories Volume 15 History of the 97th - 102d Aero Squadron via <a rel="nofollow" class="external free" href="http://www.fold3.com">http://www.fold3.com</a>