I've just read Sorcerer's Stone or Philosopher's Stone with my daughter and watched the movie and we are now beginning Chamber of Secrets. As my husband and I were watching the movie (to decide if it would be too scary for her or not after reading the book,) I got to thinking about it and other than Mrs. Norris I believe all the Basilisk victims were from Gryffindor - in the movie. Collin Creevy, Hermione - even the ghost was Sr. Nicholas.
Of course there were more victims in the book I was not remembering, but it made me wonder if Moaning Myrtle was also from G house (just coincidentally and as a curiosity).
Do the books say anywhere?