At the risk of cross-threading: Did you say "Dumbledors" in that fourth verse from the end? "He battled with the Dumbledors..."? So Tolkien foresaw Hogwarts and Harry Potter ("real" or USAmerican) and all the rest? Maybe this whole poem is about Voldemort?

On a slightly less (only slightly) frivolous note, is there any other literary reference to a Voldemort, perhaps from years back, that we don't think of readily?