Not Lincoln Beachy, he learned to fly at a school run by Glenn Curtis and lived several years after learning to fly. This doesn't fit clue 1 or the timeline given in clues 2 and 3.
That said, time for another clue:
Looking for a pilot in this case
1) This aviation pioneer was self taught
2) He made history less than a year after learning to fly
3) He was killed in a crash less than a year later
4) He was posthumously awarded a flying medal for the feats he previously performed
5) In his first "history making" flight, he actually damaged his plane
6) His flight lasted only 2.5 miles
Good Luck