Alto family/theories

The Sims 3, is a prequel to The Sims. So if the Altos pretty much run the town, why aren't they mentioned in any other game. Post your theories here.

Theories
* I think, they were run out of town before the beginning of The Sims, for being too evil...

* They were all killed. :) I hate them anyway!!!

* I think that Holly, didn't marry or have any children, so the family ended.

* Gunther won to be mayor and they moved to another town.