We've bought an 1850 colonial farmhouse in need of cosmetic help. This is also our first home. We've spoke with neighbors who insist that the previous, previous owner claimed it was part of the underground railroad. . . there is also 4 concrete/cement slabs in the yard that have a wire coming out of it(with the wire coming out of it I'm a little hesitant to open it up), what could this possibly be? Any ideas on how I could find the history of this house, its obviously not in its original condition but before we side the house I'd like to find out if I should be preserving it, thanks for your help.