Hatcher List & Winnette, Sometimes a little extra effort can result in finding the location of a grave. You are correct, just because there is no marker dosn't mean there is no grave and also important - There is no story, and every one leaves a story. Mine may be "fat and lazy", but a story never-the-less. In a joint effort of a cousin of my Wife (Shirley Krenik), myself, The Community of Plainfield WI Sexton (Betty Petrusky) for Plainfield Cemetery, and "Find a Grave",  There is a memorial for Isaac and Nancy (Tompins) Patchen. In one more generation  The story KILLED BY INDAINS and their existance may have been forgoten. For the Story and memorial go to "Find a Grave" search page and enter memorial #  23277959 BIKERBOB