I'm with Aaron on this one, just because a map or a books description doesn't specifically call out the location of a graveyard doesn't mean there isn't one and adding it in, if you actually need it, isn't particularly difficult. All the absence of information in the book means is that the developer didn't seem to think the information was relevant to what they were trying to present.
I mean the maps don't generally point out where the towns local wainwright can be found, does that mean there's no one around to build & fix the various carts & wagons used by the towns populace? How many other seemingly important businesses and individuals to everyday life get left out of a book or aren't marked on a map because they're not deemed useful enough to the story the developer is trying to layout?
If you want a graveyard, pop one down. If you want interesting funerary rites, dream them up. If your players need their cart fixed, fabricate the towns wainwright and his or her place of business. Etc.