Burial Register llanfair is gaer

[neil16377]

Sorry i am back again, but with a new question if anyone can help.  I have been struggling to find burial locations at llanfairisgaer/caernarfon for some time now with many many of my grandparents APPARENTLY buried there!!!
But my question is this, in the parish register i have found enteries for 6 family members buried there, but No Sign of  a gravestone for any ! BUT the one Grave that i have found that has my great x4    g/parents there...There is no entry for neither in the llanfairisgaer register!
Can anyone explain why? or am i doing something wrong?   regards neil..

robert jones 1832-1898......catherine jones 1843-1903

Moderator comment: duplicate thread here:
http://www.rootschat.com/forum/index.php?topic=797537.0
please post any replies there.  Thanks