If your family was from Guilford, it's time to start planning a trip. Guilford Connecticut has embraced heritage tourism. The first year is starting slow, with historic walking tours. Local high schoolers have been trained to give tours of the Green area. I haven't been on one yet, but they look promising! (I need a budget just for blog tourism!).
For those of you who can't visit, make sure to visit the blog at http://www.historicguilford.org/hti/blog/. Most of the posts are about walking tours, but there's a nice post about the Green's history. Happy reading.