Id' say good day...I live in a house that was built as a school in 1861, and was added to in 1881, sold by the county and became a residence in 1900, and added to again in 1927 . A few acres of farmland came with it. It had been abandoned for many years and was wrecked when we got it in '86...I was already an avid detectorists back then. We have lived here almost 30 years and I haven't found one thing on this property! Cellar, wall tear outs, floor tear outs, decades of detecting here and still nothing, DIDDILY FREAKING SQUAT! So I thing your doing fine...good luck going forward!
PS. I forgot, the County records folks say it is considered to be a "contributing member" on and to the Indiana State registry of historic places. And still nothing to dig up in 28 years of detecting...very frustrating.