Hobbit Question

[icarus_chained]

I don't have my copy to hand, and I'm not sure it was actually mentioned anyway, but ...

Do we know the patronymics for Dori/Nori/Ori, Bofur/Bombur, and Bifur? As in Balin son of Fundin, Thorin son of Thrain, Ori son of ...?

I'm also right in thinking Bifur is cousin to Bofur & Bombur, not brother, yes? So he would have a different patronymic?

Any help would be appreciated -_-;