Tangentially related: there is a website that gathers info about solo flights around the world, with links to personal websites and blogs, people who found this article interesting may like it: http://www.earthrounders.com/
Edit: there is also another website specifically related to solo flights around the world completed before the advent of GPS: http://www.soloflights.org/index.html
Edit: there is also another website specifically related to solo flights around the world completed before the advent of GPS: http://www.soloflights.org/index.html