Tom
... In past years of research which many times extended to exploring various old cemeteries. Frequently when I would come across an interesting person, stone or particular unit indicated on the grave stone I would usually photograph the stone in question for later research. After reading this thread I went back looking at many of the old photos and took note that many of the stones did have many variations. Obviously reflective of when the stone was placed on it. I find it interesting and a good useful tool to use for determining when a given grave might have been marked. Please keep us posted on your findings.

Frederick