I've just been more about this...
If four of Thorin's companions were women and it's not mentioned in the story itself, how many of the dwarves we've coma along could be women? Just thinking about all dwarves in Tolkien's books...

Well, seriously, probably no one, because there aren't very much female main characters in Tolkien's books and those dwarves mentioned are usually kings or great warriors and not many of Tolkien's women are "warheros" (except Éowyn and so on...).
So the question I thought about
:
The Seven Fathers of the Dwarves. Some of them were women? Dwarves are, in my opinion, very patriarchaic (?) people. So some of their most highly regarded ancestors being women doesn't sound very smart. But
some of them, at least one,
had to be women/woman,
because otherwise the dwarves would have died to extinction, because men can't reproduce without women. Any ideas about this?