So far I've just photographed a few pages. I'm gonna bring a couple of the ledgers home to work with. Currently their job is holding the rug down to get the curl off the edge where it was rolled up for shipping. I'm gonna round up some old brick from the back 40 to use for that purpose. There were letters, too but most so damaged they fell apart in my hands. It has been a treasure hunt as you say. Last week found an engraved pocket watch, unknown who it belonged to, and a set of dishes (nothing valuable, but intact) buried behind one of the outbuildings.
The ultimate target is the stash of gold rumored to have been buried on the land in 1863.