After serving four and a half years in the army during WWII-mostly in the battle-torn islands of the South Pacific-and along the way losing his best friend at Iwo Jima, Earl Shaffer came home to Pennsylvania with a large dose of military depression. After rattling around for a while he decided to act upon a prewar dream of hiking the entire Appalachian Trail, a decision that was spurred by reading a magazine article stating that such a feat was likely...