This is just strange, as cemeteries are not an essential thing to know. Nice for genealogist, but not something that needs to be mandated.
That's disturbing, since the Catholic Church has ordered that parish records of Catholics are not to be given to mormons to be used for the baptism of the dead.
Ask your cousin if she has orders to leave the Catholic dead out of the system? If not, it's a slap in the face to Catholic church. The mormon church has promised Jewish leaders more than once to stop the baptism of dead Holocaust victims. Ask your cousin if the Jewish dead are being left out of the system.
This arrogance of the mormon church of attempting to baptize every soul who has ever lived as a member of the mormon church shows that there is none of the "respect" that mormonism continually demands of Jews and Christians alike.