My latest book, Hauntings of the Underground Railroad. Ghosts of the Midwest (Indiana University Press), is due out August 1. Researching the book took me into the small towns of Indiana, Ohio, Illinois, Wisconsin and Michigan where ghost stories abound about UGRR. Though I never saw a ghost myself, The Courtyards housed in a building dating back to the 1820s were said to be a stop on the Underground Railroad.
For more information:
http://www.iupress.indiana.edu/product_info.php?products_id=808927