Question regarding Tom Riddle

[rvotaw at i-55.com]

No: HPFGUIDX 46472

I'm bringing this over from the movie list, where it has recently been 
discussed regarding Tom Riddle in the CoS movie.  Now, here's my question.  Is 
Hagrid's comment about "You Know Who" coming from Slytherin really the 
only "proof" that Riddle was in Slytherin?  I seem to have mental references to 
other links, but can't think of them.  Have I been fooling myself all this time 
based on one little comment from Hagrid?  Who has been known to say things that 
weren't quite the truth anyway.  Surely there's other canon supporting that Tom 
Riddle was in Slytherin?

Richelle