I'm not sure if this is relevant, but Orgulas Brandybuck (born TA 2868) was the youngest child of Marmadoc Brandybuck and the father of Gorbulas Brandybuck. Of course, this could be a different Orgulas (of Bree?).
I believe that the Forsaken Inn is said to be unoccupied during the suggested timeframe for Ruins of the North, but I have speculated that the place has had a number of different owners who have tried to make a go of the inn over the years. It would also be a good secret rendezvous for Rangers of the North and a possible location for them to keep a hidden cache of supplies.
The Thieves' Glen could be anything from the name of a tavern in Combe (with a less than wholesome reputation?) to a clearing once used as a meeting place for a gang of bandits. Also in Combe we have the High House. I'm guessing that it is a Mannish structure; perhaps it is notable for being the highest building in Bree-land (three floors?).
The Elf-dell might also serve as a secret rendezvous for Rangers and/or young lovers.
The Wood-castle in Archet is another intriguing place-name. Perhaps it is an old defensive fortification?