There's no real life Forrest Gump, but there are some folks out there who are pretty close. One of my favorite authors is Homer Hickam. His website has a lot of good information and my favorite books of his are October Sky and then the entire Josh Thurlow series, but he's almost a living Forrest Gump in his own right. A local author got five minutes with him and published an interview in The Blotter. Click the December 2008 issue and download the PDF and go to page 11 to read the interview. He's an amazing guy, and has been known to swap email with just about anyone, including shleps like me!
PS: Jane, the article uses the word "raconteur"! Seriously! And thanks to Paul Jones for pointing out this article to me.