Marvin BARR responded to my posting on a message board at Ancestry.com that a gravestone in Patterson Cemetery at Deersville, Franklin Township, Harrison County, Ohio for Corp. John A. BARR (51st O.V.I.) might be for John BARR (1826 - 1908) 47th O.V.I. & 170th O.V.I. IF the military provided the WRONG headstone !I now believe such a mixup occurred.The Family Search (LDS) website recently added (or indexed) "Applications for Headstones for Military Veterans" to their files.Searching on John A. Barr yields a record and an image of the original application from 1933 regarding the grave at Patterson Cemetery, Deersville.At the bottom is typed: "This headstone appears to have been furnished on the wrong service.see file.Should probably be John Barr 47 and 170 Ohio Inf."(The REAL Corp. John A. Barr- 51at O.V.I. - seems to be buried in Allen County, Ohio.)This ties up a loose end for me, but doesn't end my search.I was seeking John BARR's grave on the chance that his daughter, Mahala Barr CRUMRINE might have buried her husband, Finley CRUMRINE (1859 - 1898), nearby in her (BARR) family plot.But there is no such headstone.