Thank you. Interesting info re vaults.
I will email or call to ask their preferred way of me requesting. What I'd hope to find out was who is the owner of the grave and who's in it. I'm able to do this with two old cemeteries in Chicago. They can also tell me if there is a headstone or marker.
I was also told by local priest that the details of special dispensations were on record in the particular archdiocese. I have just such a question on a second marriage of my 2xg grandmother. The circumstances will tell me alot about what happened to her first husband.