I'm just now finding out about this guy. Wow. What an absolutely legendary mix of character, courage, talent, and despair. And unlike Peregrinus he didn't have to talk about it for four years to get his nerve up.
Plennie Lawrence Wingo (January 24, 1895 – October 2, 1993) walked backwards from Santa Monica, California to Istanbul, Turkey (about 13,000 km/8,000 miles) from April 15, 1931 to October 24, 1932 at the age of 36.