Jamie, The Illustrated Historical Atlas of Indiana, published first in 1876, shows one cemetery that might be the one that you are looking for.Going SE from Rushville on US52 there is a town called New Salem.Just before reaching New Salem turn west and follow that road for about a mile or a bit more.The road will cross Flat Rock Creek at that point.Cross the creek and turn south at the next road. About a quarter mile after turning south there is (or was) a church on your right.A cemetery is shown on the map across the road from the church and right next to the stream. There is another cemetery a couple of miles closer to Rushville on the opposite side of the road. I would be pleased to copy this portion of the map and send it to you by mail if that would be convenient. Please let me know what you find as this is my line as well.