George's sister

3rd Grade Female Moose is the sister of George Lundgren. She appears in Sue Ellen's Little Sister racing with George in the Brother and Sister Race at the Annual Picnic. After that appearance, she received a cameo in the special Arthur's Perfect Christmas where she was dancing with the rest of George's family. Aside from this, the character has yet to make a return appearance other than a cameo. She has made cameos in several episodes, like in Muffy's New Best Friend she is seen on a ride with George and in Bitzi's Beau she is seen walking out of Lakewood Elementary School.

Appearance
3rd Grade Female Moose has skin complexion a little lighter then her brother.She has auburn dark colored hair with bows in them. She wears a red short-sleeved shirt with a white shirt under it, and wears denim shorts.