I don't claim to be any kind of an expert on cemeteries or burial information but I will make the following observations. l. 1811 is 189 years ago when there may not have been a church building with a cemetery attached which was certainly the case in later years. 2. Unless the town set aside land, or it was donated from some weathy landowner there was probably no cemetery per se. 3. Burial permits were not required back then as they are now. 4. I am sure that many were buried on their own land and inexpensive markers (or no markers were erected). These would have been lost over the span of years. 5. Not everyone was in a financial position to erect an expensive stone, or marble or whatever marker which would last for upwards of 200 years. 6. I am sure you can walk the cemeteries. I would suspect that each town has a list of areas where there are graves, even if they are not "cemeteries" and directions as to location. 7. Stones disintegrate, population expands, land is needed, houses are built, etc. etc.