Much of Spence's ESTIMATIONS of the Hunley's location was useful in VERIFYING the location where Hunley was found, photographed, and ultimately raised in 1995. We worked with several entities, including the South Carolina Institute for Archaeology and Anthropology, U.S. Naval Institute, and Clive Cussler's NUMA. The discoveries of both the Hunley and Queen Anne's Revenge occurred just a year or so after I had left North Carolina (and a year apart, in 95 and 96), but I spent several years prior assisting in research. I have no idea if any of the information I found was crucial to any of the location efforts, but I take a bit of pride in knowing that perhaps I may have. Unlike the claims of a particular poster on this forum, there are real, actual, tangible artifacts that show the research was successful.