Thora's mother

Thora's Mother (also known as Arthur, D.W., and Kate's Great-Grandmother) is the mother of Thora, David and Loretta's maternal grandmother, and Arthur, D.W., Kate, Monique, Ricky, and a girl's great-grandmother. In Clarissa is Cracked, she is shown as a young mother from Thora's childhood, and in Arthur's Cousin Catastrophe, she is shown as a present elderly woman at the family reunion.