The difficult task of wandering the war-torn countryside of Europe in search of fallen World War I American aviators fell to a U.S. Army captain named E.W. Zinn. A combat pilot himself, Zinn had roamed France, Belgium and Germany interviewing the local population to see what they knew of American crash sites - "Many times he has come upon a grave with a rude cross on which was scrawled - 'Unidentified Americn Aviator' or 'Two Unidentified American Aviators'" "Captain Zinn has found that in a great many cases American fliers were buried either by the Germans or by civilians with no mark of identification left on them." http://www.oldmagazinearticles.com/pdf/Dead_Aviators.pdf
