I stumbled across this website 9/4/05 totally by accident and not only found my great-grandfather's listing (along with his death year) from my mother's mother's side, but also found my elusive great-grandparents on my mother's father's side.
I found out where my mother's mother was buried and my mother's maternal grandmother through death certificates and this website listed my great-grandfather being buried in the same cemetery as well.
For a long time I couldn't find my grandfather's parents because they had a different lastname than my grandfather, this site had the pair listed.
Here's the site:http://rays-place.com
scroll down and click on cemetery listings. Good Luck!