Brother and sister Tommy and Sally Wilson grew up in the house 2102 Shady Lane. They were rather mischievous kids; they made mud pies in the yard and broke the house's windows with their baseball. When they grew up, both moved out to start their individual families.
They came back to their first home for a tribute on Here is Your Life and apologized for the mischief they caused as kids. The house tells them not to worry -- it was a joy being their home.
Sally appears in the song "Daddy Helps with the Dishes", where it is learned that she and her husband work together in a factory and at home they and their son do various chores like washing the dishes and taking out the trash.