Elijah Gates Camp 570, SCV has a page on their website telling of the Brown Far Massacre in Callaway County, the killing of unarmed confederate recruits in October 1864 by Major James C. bay and a patrol of the 67th EMM from Montgomery County. Major Bay lived south of Wellsville and according to the story--Brown's Farm Massacre, THE FULTON GAZETTE, May 1, 1914---had orders from General Fisk (O.R. Series i, Volume 34, part 3, page 615) to "exterminate all the bushwhackers and guerillas who may infest your vicinity." This order was given before the Centralia episode and apparently the 67th took it literally so with that in mind I suspect that may explain the stone in the Wellsville cemetery. Not the party in Callaway but possibly a small party of confederate recruits in Montgomery County.