In 1971, a building survey was done for the Bates–Hendricks House. It was used as the basis of all historic building data information in the years to follow. A copy of the original survey was found in the Library of Congress and reviewed against current known information. Many major errors were found in the 1971 document including the construction dates of the home. Currently, the Library of Congress Survey is being updated to reflect what is now known about the Bates–Hendricks structure.