The London Daily Mail had a £1,000 prize for the first airplane flight across the Channel, a competition French aviator Louis Blériot won in 1909.
In doing this, Blériot bested rival pilots including Charles de Lambert. Lambert had received his training from Wilbur Wright of that famous American duo, the Wright brothers. (There’s a link at the end of this article for a bibliography of sources I used in researching Delaunay, including this Smithsonian article.)