...My god, it really is just fanon.

As far as I know, the only canon stuff we know about him is [a] he was in Afganistan, where he screwed up bigtime and consequently got sent to Antarctica, [b] he used to be married (!!!), [c] he likes American football and Ferris wheels and things that go very very fast, [d] he's indecisive enough to make life-changing decisions on a coin-flip, and [e] Ancient chicks dig him. Fanon provides him with [f] Rodney McKay, [g] mystical powers somehow relating to his insane hair, and [h] that damn military background.