Adolphe Pégoud and the Loop the Loop

Hugh W. Peart & John Schaffter.  The Winds of Change.  A History of Canada and Canadians in the Twentieth Century.  Toronto:  The Ryerson Press, 1961.

Pégoud was one of the first, if not the first, to loop the loop.  He was also the first person to parachute from an aircraft, and the first to lay claim to the title of "ace" (four confirmed aerial victories).  He was shot down and killed in 1915 by a former student, now serving in the German air force.