Bitzi's mother

Bitzi's mother is the maternal grandmother of Buster Baxter.

Physical appearance
She looks very much like Bitzi, but wearing square glasses as opposed to the more stylish ones Bitzi wears, and is older than her. Sometimes she is seen in the background with one of D.W.'s preschool classmates.

Arthur

 * "Arthur Cleans Up"
 * "Buster Makes the Grade"

Postcards from Buster

 * "Among the Hmong"