In the waning days of World War I, 24-year-old Gary Evans Foster found himself alone and facing a torrent of German machine gun fire. Hugging the dirt and bounding from shell crater to shell crater, the Spartanburg County native's mad dash across a French field would later be immortalized after he was awarded the nation's highest decoration for valor. On the morning of Oct. 8, 1918, though, Foster was just trying to stay alive. "He always maintained he was just doing his duty," said Foster's