I have no answers for you just one suggestion...put the grave info on findagrave.com and then press the button requesting a photo.Some people will go to that cemetery at your request...It's a free site.By requesting that a photo be taken the site will email all the volunteer members in that area, and with any luck, someone may take the task. I've had one response to the several I've requested...that's better than nothing!
I didn't see your rellie's info listed on that site.I have been adding photos (only old and local cemeteries here in CT.)I am from NJ originally and every once in a blue moon I get out to snap some stones, but I go no where near Montclair...sorry.
I just made an Aiello post...related to any Frank and Jenny's from the New Rochelle NY area?I have an old wedding photograph mixed in to my grandmother's old photo albums.I just came into possession of these albums and have many, many unidentified ones.
I wish you luck!I've had lots of luck with ordering microfilm from LDS for San Fili, Italy.I'm waiting forever it seems for the Rende Italy microfilm to come in...anyway, again, good luck.