Well, there are 860 grave sites showing in Find A Grave and I am an editor at Miles Files https://espl-genealogy.org/index.php 
My project there is to get Miles Files, Find A Grave, & OpenStreetMap to all agree with the 2 graveyard books for Accomack County, VA - Name, Town & L/L. So i'll be at this for a while.
2 suggestions for management - use winter satellite views for editing in the northern hemisphere (trees obscure gravestones & small features), also use a bright color for the 'Edit' Cursor (+).

Later,