Archives Genealogiques et Historiques de la Noblesse de France

A French book recording the MacCarthy Clan in its listing of its nobility. Recording the lineage of Justin, le comte de MacCarthy-Reagh. Records the ultimate MacCarthy origins, but the MacCarthy Reagh sept begins on page 79 (the PDF's page 89).

Pedigree of Mac Carthy of Dunmanway

John O’Donovan's "Pedigree of Mac Carthy of Dunmanway" is an excellent source for anyone researching the MacCrthy Glas sept. 

Tithe Applotment Books

An excellent research tool to search through the early 19th century tithe records. It will search for what you enter exactly as you enter it. So you search for "McCarthy", it would show you all the "Carty" entries.

Griffith's Valuation

In the mid 19th century Sir Richard Griffith conducted a property valuation of Ireland. This tool lets you search for names in specific townlands, and lists if the own or lease the property, and what it was valued.

Ellis Island Passenger Search

If you're an American whose looking to delve into your Irish ancestry, this could be an invaluable database for you. Odds are good that your ancestor traveled through Ellis Island, and you might be able to use this tool to find them and learn more about where they came from, who with, and even on what ship! 

"Donogh McCarty reagh" of Dromcorragh

A bond index recording a Donogh McCarthy Reagh who died in Dromcorragh, in the parish of Caheragh, in 1663. Still unsure exactly who this Donogh would be in the tree.

Florence McCarthy of Dromcorragh

A deed referencing Florence McCarthy owning land in Dromcorragh in 1805.