Hey all. On doombuggies.com, there's a photograph of a real Baltimore mansion that looks extremely similar to the Haunted Mansion facade at DL. It's on this page, a little ways down and on the left of the main text area. I'd really like to know the name of this mansion and find out more about it, but all I've found is that the photo was "from Frances Lichten's 1950 collection which was found in the WDI library." I know the mansion is in Baltimore, too. Check out that page to see if you recognize it or catch anything I didn't.
I'm awaiting a reply from the Disney company about the same query. Any help I can get would be appreciated muchly! Thanks for your time.