If you look on the map in New Vegas to the west of Primm there is a location marked "Canyon Wreckage". Graffiti on the wreckage read as such:
You can go home courier
The Divide is first mentioned in the DLC Dead Money as a place that Elijah and Christine came from before Elijah went to the Sierra Madre. Christine was saved by a man that wore the old US flag on his back. This mans likely name is Ulysses, who if you got the CE for New Vegas is on one of the cards in deck of cards you get with the game. It is likely that you will meet Ulysses in this DLC.