Hi, and welcome to rootschat

When was your 2x grandad buried, looking at an old map it seems the municipal cemetary was created in about 1885, before that burials would have been in the much smaller church graveyard.
Looking at the satellite view and street view it may be that many of the headstones in that area have been removed for safety reasons, and the inscriptions recorded.
Maybe contact the church by email or on their Facebook page to see if this is so and if the church still has the original churchyard plan.
Mike