House histories are a little known part of genealogy. House historians connect people to the homes they lived in. Their work is part genealogy and part history. They study both deeds and census documents to help piece together the story of a house's life. Marian Pierre-Louis provides examples on her blog The New England House Historian .
Turns out a local realtor has become Goodhue County's resident house historian! Her blog, Historic Homes of Minnesota, gives short histories of the homes she's listing. While some entries lack detail, others provide the history of an entire family's residency. Right now, Historic Homes of Minnesota isn't quite at the level of detail a typical house historian would provide. However, it offers a researcher a wonderful starting point!