: 3)  When telling Bilbo and the Dwarves about Beorn
:     (prior to actually meeting him), Gandalf speculated
:     Beorn's people came from the mountains before the
:     giants came, or something like that.  Don't have
:     time to check right now.
It was bears, not men, who were driven from the mountains by giants.  I am looking at the Hobbit now and it says that Gandalf thinks Beorn was descended from men who lived before Smaug and other dragons drove them from their lands.
Lisa