Okay, are these names/dates from the headstones?If yes, then you need to PHONE the office and ask for exact dates of death so you can hunt down the death certs.In earlier yrs there were no rules as to how many in a grave; I have 13 between 3 graves in a Chicago catholic cemetery.
First look for the immigrant generation...
For 10yrs I assumed that Maria Nolan buried among the 13 was one of the many daughters .... finally IL came out w/a new death index that gave age at death and Maria turned out to be an immigrant sib who never married and died age 91.Within 10 mins I had her death cert and parents' names in Carlow IRE; in another 12 hrs I had 7 siblings and the parish identified.Following up on her lead gave me the paper trail that couldn't be found on any of the other immigrants.(And I also have infants of immigrant cousins buried with them ... whoever owned a grave in the family took the many infants.)
One more note -- for 15 years I ignored a bachelor child child of my Kellys.I had given up, had all the docs on the rest of the children and never could make the jump to IRE between Kelly & West as the surnames and them arriving so early.
When familysearch.orgoffered the free certs I casually entered the bachelor's name and that death cert gave COUNTY of birth for both parents!Waterford & Queens Co ... not one other Kelly doc offered that information.
And, dead-ended in Westmeath with my Moran/Kennys after ordering the parish film multiple times and visiting --- rootsireland gave me the breakthrough, listing Collinstown WMTH (near where I see Phelan Hasset) with MEATH records, across the border.For about $30 I had two more generations ... a sound investment when you think this had been 15 years of searching.