Butler and Kilkenny go together like a horse and carriage.
Butler's Chocolates, a Castle etc.
In the Griffith Valuation for Kilkenny in 1850 are listed 733 Butlers. The name is English, many Irish are
really what is now called Anglo/Irish and came over to Ireland and were given lands by the crown for
helping people like Cromwell! Lots of history about the Anglo-Irish. The originals would of been
Church of Ireland after Henry VIII invented the Church of England.
You can go through the Griffith Valuation www.askaboutireland.ie
and pick out those with property they own, not just lease/rent from others.
80 named Thomas and 82 named John (the most used name in Ireland)
Pierce S. Butler, Esquire Parish Balleen, Townland Creenkillmore IN FEE/OWNS and he has
5A&B land (plantation) 18 acres 3 roods and 28 perches but has 250 acres and many tenants in this townland
An Esquire is not royalty just a man of standing that doesn't usually work unless had been in the military and these people became Judges and Justices and lived on monies from tenants.
Mrs. Jessie Anne Butler, has 250 acres and tenants in the Townland of Lodge she has 311 acres
I'm sure you can buy books about the Butlers. Like my husband's family the Codd's who also came over from Cornwall in the 1600's and had a castle, this many years later are just ordinary regular people. There is no way to connect the familes from the 1600's to the families in the 1800, too many missing records to make any connections that make sense. Many family genealogist make huge jumps and assumptions not necessarily backed up with records.
If they are Church of Ireland you have a better chance of finding records as many of the parish registers are held by the church in their Representative Library in Dublin (not the National Library)www.ireland.anglican.org
they do NOT do research it requires a person to attend. They do have a few digitized records on line.www.rootsireland.ie
will give you any parish records that exist for both RC and Protestant which were collected from Parish Registerswww.familysearch.org
has civil records for Ireland from 1864 but older records in England
You probably would be able to find Estate records for the Butlers at the National Library in Dublin.