Designing posters based on a "pioneer aviators" theme for the Ohio Aviation Association Annual Conference this October, I've found the National Aviation Hall of Fame website to be a helpful catalog of aeronautic greats and, with its pleasant historical narratives, a catalyst for graphic ideas. Those narratives must nevertheless be taken with a grain of salt; moreover, the site's content is either organized and examined by volunteers or those lacking proofreading skills, as demonstrated by passages like this one:

[Jimmy Doolittle] won the Thompson Trophy in 1932 flying the Gee Bee R-1 at a speed of 252,686 mph saying it was the most dangerous airplane he ever flew.

That's got to be dangerous, seeing as how 252,686 miles per hour is over three hundred times the speed of sound.