Claude Graham-White, early airmail pilot

Credit - (c) 2002 National Air and Space Museum, Smithsonian Institution (SI Videodisc No. 2B-10953)

Mechanics get Boyle ready for flight

Credit - United Airline Archives

Ovington's Dragonfly

Credit - Jesse Davidson Aviation Archives

Airmail stamp honoring Ovington

Credit - Air Mail Pioneers

Fred Wiseman flying

Credit - Air Mail Pioneers

Lindbergh opens airmail route between Chicago and St. Louis

Credit - Courtesy Roy Nagl