I used findagrave.com to help my grandma find her father's grave in Oregon. Findagrave listed a location and had the image. We walked to the spot and it was someone else's grave. My grandma remembered it being by a tree, the only tree in the cemetery, but it wasn't there either. Then we went to the cemetery registry sign and found it in a different location. A bit of searching later and we found it in a completely different row than what the registry sign said. This is when I realized that they're just moving grave stones around, so you're likely not even standing next to your loved one sometimes.