I am doing a similar project with family genealogy so it covers a longer span of time but the family connections to places become tangible. You really see how some people live out their entire lives in one small area while others hit the trails and find a way to prosper in some far-off locality. It especially stands out when you look at children and inheritances since the first-born son typically ended up with the father's best assets and other sons needed to find their own way with smaller parcels of land or almost nothing. Perhaps the most interesting part is discovering all the loops and intersections where a descendant ends up living or working in a town where an ancestor lived generations earlier without knowing anything about that ancestor. Feels like the circle is completed when someone later cycles back through and finds that they also like the place well enough to stay a while.