Thora's mother

acter infobox Thora's Mother (also known as Arthur, D.W., and Kate's Great-Grandmother) is the unnamed mother of Thora, David and Loretta's maternal grandmother, and Arthur, D.W., Kate, Monique, Ricky, and Tiffany's great-grandmother. She is 90 years old.
 * character name = Thora's mother
 * image = Arthur's Great Grandmother.PNG
 * gender = Female
 * animal = Aardvark
 * age = 80's-90's
 * portrayer = Sonja Ball (young woman)
 * family = Thora Read (daughter) David Read (grandson) Loretta (granddaughter) Arthur Read (great-grandson) Monique (great-granddaughter) Ricky (great-grandson) D.W. Read (great-granddaughter) Loretta's daughter (great-granddaughter) Kate Read (great-granddaughter) Sons
 * cartoon first appeared = Arthur's Cousin Catastrophe
 * book first appeared = }}

Appearances
Arthur
 * 10902 Arthur's Cousin Catastrophe (cameo)
 * 31202 Clarissa is Cracked (flashback cameo)

Past life
In Clarissa is Cracked, she is shown as a young mother from Thora's childhood.

Current life
In Arthur's Cousin Catastrophe, she is shown as a present elderly woman at the family reunion, and later wins the egg race there.