you can name them a name and number their last names and when two people have kids, you put the numbers together, for example, villager 2 + villager 5= villager 25
It is an easy way to remember who their parents are.
I do the same but with... the names!! For example, my last born is "Waipi PaiRuk", daughter of Pai and Ruku! (And she's so cute!!
)
It's ok, HappyPlayer!