Well, Azog (I'm pretty sure) is correct...Thror and Nain.
The Bolrog, I think, is correct too...Durin and Nain I.
I also found this in Appendix A:
Quote:
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At last Dain I, together with Fror, his second son, was slain at the doors of his hall by a great cold-drake.
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I have no clue if that is what you were looking for though.