351st Aero Squadron - Personnel  4th Artillery Observation School   Camp De Meucon, France, September 1918
Air Service, United States Army photograph
1918
US National Archives, Gorrell's History of the American Expeditionary Forces Air Service, Series E Volume 22 Histories of the 222d, 223d, 227th, 247th, 248th, 257th-261st, 264th, 266th, 267th, 269th, 270th, 278th, 281st, 309th, 334th, 338th, 341st, 350th, 351st, 353d, 354th, 369th, 370th, and 372d-376th Aero Squadrons   via <a rel="nofollow" class="external free" href="http://www.fold3.com">http://www.fold3.com</a>