Denise Nickerson signed the top photo at the only appearance of all five kids together... it was a special convention.  Though some have appeared elsewhere, this was the only time Peter Ostrum participated and all fiver were together again. Bottom photo of Ms. Nickerson taken at the convention.  Obtained through Paris Themmen who was Mike Teevee. Denise Nickerson was the gum-chewing Violet Beauregarde in Willy Wonka and the Chocolate Factory. She blew up like a blueberry and had to be 'juiced'.