Board Thread:Naruto Discussions/@comment-24847491-20140930224249/@comment-25349026-20141001023214

ItachiWasAHero wrote: The Uzumaki were a close cousin clan of the Senju. It basically means this... "One guy" had two boys, one of the boys became the direct start of Senju clan, and the other became the direct start of Uzumaki clan, and we all know that the "One guy" is Asuras direct descendant. Senju and Uzumaki are essentially the same clan, minus some features such as hair and eye colors and and specialties since they grew about in a different geographic. So Uzumaki would at the least be on par with Uchiha clan.

Please refer to this post before causing an actual maelstrom of crap posts. My only disagreement with Itachi's statement here is that I think one of the kids would have been a girl (since this universe seems to use the same naming methods that the Japanese do where wives take their husband's name) otherwise both boys would be Senju. So the boy was the Senju, and the girl married into the Uzumaki. But his way works too if those two boys "created" the clans as well.