[Child of the 7th Age]

Of course, there's no reference (as far as I am aware) to Hobbit burial sites either (save that Merry and Pippin were, I think, buried alongside King Elessar).

On Hobbit burial, see "The Scouring of the Shire".

Nineteen hobbits were killed and some thirty were wounded. The dead ruffians were laden on waggons and hauled off to an old sand-pit nearby and there buried: in the Battle Pit, as it was afterwards called. The fallen hobbits were laid together in a grave on the hill-side, where later a great stone was set up with a garden about it...

This is said so matter-of-fact that it suggests to me that hobbits routinely buried their dead, and perhaps set up some some sort of a remembrance.