Admittedly it's been a while since I read the earlier Potter books.  Which one is it mentioned in?  I've read a lot of fanfic where he's assumed to be Gryffindor, but couldn't remember ever seeing it confirmed in any of the novels.  Any info would be appreciated!Alison

The first book, chapter six I believe.  A good source for information like this is the Lexicon.  They are a great tool for writing fanfiction, as they save rereading through all the books, and if they don't have the information you want, have listings where to find it to narrow the search.

Thanks for that - you're right!  It's the scene on the train where they first meet Hermione.  She says: "I hope I'm put into Gryffindor, I hear Dumbledore was one."  So it seems my whole story premise was wrong - oh well!  I still enjoyed writing it - I like the thought of Dumbledore confouding the expectations of all the more "glamorous" houses and get put into Hufflepuff instead.Alison 

Thanks.  I'm glad you liked it!

Thanks!  I'm glad you liked it.  I wanted to keep the readers guessing as to identity.Alison