Thanks @igazor I did download Traveler a few weeks ago and have been giving it a spin. I'm not too familiar with all the options available with it.
My main Sim has 7 kids total, 2 adopted and 5 biological. Three of those 5 biological children, including this young man, plus both of the adopted kids, are now college graduated young adults. That's a lot of potential people, plus there are other relatives in town as well. In addition, her younger brother also has a child, who is a teenager. I would guesstimate that half of the town now consists of members of this family. These sims breed like rabbits. One of the adopted kids has already had a baby through story progression.
