I was just rewatching the episode Special.
I had forgottenthis , or maybe I didn't even catch on before: Walt and Aaron are both considered special. They were both wanted by the others, their mothers both had the same last initial. (Lloyd & Littleton)
On top of that, their fathers were both painters.
It makes me wonder if Ben and John's fathers were once painters. They were also "special", both leaders of the others and had the same initial. Linus and Locke.