Shaffrey / Shaffry / Shaffy - Moynalty, Meath - Shancarnan, Meath

I have exhausted my research on my Shaffrey line which also includes Maxwells.   About 6 years ago I took the time to pour through the Parish of Moynalty ledger records found on film.  The chicken scratch writing was hard to get through and when the handwriting did improve the book was about the time that my ancestors left Ireland for the United States.  I did continue in the ledger though trying to piece together the Shaffrey's of Shancarnan and the immediate area.  The parish record starts in 1829.  I was able to locate the marriage of my 3rd great-grandparents, Joseph Maxwell and Judith Shaffrey, on 24 Sep 1834.  Judy as she was known by was from Shancarnan but the Maxwells were not and only this specific family was found there once Joseph and Judy were married.  Their children's baptisms were entered in the parish registry also - Dennis Maxwell, 16 Jun 1836; Mary Maxwell 17 Mar 1838; James Maxwell, 27 Sep 1841; Ellen M Maxwell, 22 Mar 1846; Catherine Maxwell, 7 Jul 1849.  The Maxwells were sponsors/witnesses to other parish member baptisms and marriages along with Judy indicated as such, too.  What I can't find?  Judith Shaffrey's parents are not indicated in any records that I've been able to access, namely the Parish of Moynalty, Meath.   The only other Maxwell mentioned is a Bill Maxwell as a convert.  I have found researching this line to be very challenging beyond what I have indicated.  I have a spreadsheet indicating line item entries of every and any instance of a Shaffrey/Shaffy/Shaffry that I could find in the parish of Moynalty ledger.  That was rather daunting to put together since the registry is hard to read.  I did my best.  I have that spreadsheet saved. I can't figure out the relationships of the family members based off this record.....well, maybe some of the later families come together a bit.  My Shaffrey/Maxwells left Ireland in 1853 and ended up at the Irish Settlement in Upstate, New York - Specifically, Newport, Herkimer County, New York.  Shaffrey, as my family has indicated it is spelled, is not a common Irish name and mostly only found in the Kells and Moynalty areas of Meath.   I have other Irish surnames in my line that are so common, research could be hard yet those have unfolded like a finely pressed shirt.  If anyone has any information about Judith Shaffrey (b. 1817 - approximately) and her parents, I am all ears.  I'd like to see documented proof.  Rumor has it that Judith's father was one Simon Shaffrey but I have not proof or source documents to prove it.  I just have some word based of someone research on a bit of a whim.  I do have some anecdotal information from a distant relative that Judith and Joseph owned and operated a tavern near Moynalty.  When the famine hit and the people started leaving Ireland, their business was adversely impacted because their customers were leaving the area.  They in turn left too.  I am hoping someone has a different source to go on for the Shaffreys and maybe the Maxwells alike.  Maxwell is a Scottish name by the way.  Apparently, Joseph's father was a James Maxwell from Scotland (b. circa 1786).  Feel free to contact me - kristin@zelsersk.net.  Who knows, I could have information that someone needs on my spreadsheet.  Thanks!