I've had sims all over Newcrest but I started my legacy family in the same save and they're situated in Windenburg and San Myshuno. Months (rl) later all sims of Newcrest have died and it's literally ...
Mine is a template I use for new sims, then save it with another name so I always have the template. Have done it with Willow Creek too. Plan on doing it with all the worlds.