[Formendacil]

Originally Posted by Legate of Amon Lanc

Just by the way, where is that information about Dwarven tribes available? It is in HoME? Where?

Yup. As I said at the end of my (longer than need be) post:

Originally Posted by Formendacil

The above is all taken (with the exception of the Fellowship of the Ring quote) from HoME vol. XII The Peoples of Middle-Earth, from the essay entitled "Of Dwarves and Men". It dates to around the time Tolkien was working on the Appendices, during the publication of the LotR, and is, as I recall, never contradicted in a later statement, and can be taken as pretty much canonical.