I wholeheartedly vote for this. I painstakingly kept my own family trees in Banished. Having it only lightly implemented would be of such great value already. Having it to The Guild standards would be mindblowing.
![:)](https://lifeisfeudal.com/media/com_easydiscuss/images/markitup/emoticon-smile.png)
A(n optional) realistic aging setting would help with this as well.