As luck would have it, the wealthiest family was the Bravo's.  I'm moving each family into their new homes as I finish the last round of Neanderthal times.  I plan to call the shopping distict "The Marketplace" while the downtown district will be the "Town Center".  I know, not the most original names but ones that will work as I carry forward.
This round I've finally gotten the first Gen 3 adults.  Now I can move on to the Roman era.  As I finish each family, I'll post a page and a photo of them as I move forward.  I've been giving each family different last names that all start with the same letter as the original couples did.  So now I can add all the B's together to get that family's group wealth, and so on.  The wealthiest family will be the Emperor and Patricians, the next weathiest will be Patricians, you get the picture.  The exception to this will be families that have mixed races.  That family will start out as Plebians.