Board Thread:Theories and Speculation/@comment-1872728-20160229033316/@comment-27660682-20160229044633

Well as marc daddy said I think it was already stated conclusively. That the uchiha and senju were the main clans, as there ancestors were ashura and indira, the children of hagoromo, and grand children of kaguya. Hamura's children likely formed the hyuga so they would have been ashura and indira's cousins. As for the uzumaki... it was implied they were related to the senju but not sure when, but I think the red haired invidiuals had branched off from the senju pretty early on due to that distinction and became to be known as the uzumaki. The senju and uzumaki kept anclose alliance and I think helped them form the whirlpool village. Which was later destroyed and never rebuilt for whatever reason even though they would have been tied to a nation. But I think its funny to note that hashirama technically reunited the senju and uzumaki clans again in a way, as he married mito and seemingly had kids, as tsunade was his granddaughter, meaning she is an uzumaki senju hybrid technically.