What is the process to add and save a photo of a headstone/tombstone in Find a Grave to a deceased ancestor in Family search.org.? Thanks!!
Unless you took the photo yourself, it is the property of the photographer. You should request permission before using that photo elsewhere such as on FamilySearch.
This recent thread may be of use: https://community.familysearch.org/en/discussion/comment/409051#Comment_409051