Find out even more about the history and global impact that the O’Sullivan Clan have made by visiting our recommended links resources:
- International O’Sullivan Clan
- O’Sullivan- Beara Peninsula
- OSuileabhain
- O’Sullivan Clan
- The O’Sullivan Tartan
- Donal O’Sullivan- The Last Prince of Ireland, Morgan Llywelyn
- O’Sullivan Genealogy Forum
- John L. O’Sullivan
- Branches of the Sullivan Family
Check out genealogy links from various official bodies in Ireland:
- The National Archives website
- Census of Ireland 1901 to 1911
- General Register Office for Republic of Ireland
- Public Record Office of Northern Ireland
- General Register Office for Northern Ireland
- Church of Ireland Genealogy Information
- Presbyterian Historical Society of Ireland
- National Library of Ireland
- Discover Ireland
- Irish Military Archives
