Okay y'all, I just stumbled upon this great Wikipedia page for the HM.
There is waaaay too much stuff on that page to list here. I included a lot of it in our master document, but I wanted to post the link here.
I think you should take the time to visit the page. IT IS AMAZING.
I had no idea. It is AMAZING to me that almost every single character in the HM has it's own story and background.
...and wait until you read about all the tombstones. I am a HUGE SUCKER for this type of information. My mind has been like a sponge tonight!
Here is the link:
http://en.wikipedia.org/wiki/List_of_Haunted_Mansion_characters
Enjoy!!!