- Genealogical Society of Ireland
- Co.Tyrone Genealogy
- The Irish Ancestral Research Association
- The American Irish Historical Societ y
- North of Ireland Family History Society
- Irish History in maps Various maps of Ireland describing its history.
- The Federation of Family History Societies (U.K.)
- Irish Family History Society
- American-Irish Historical Society
- Scots-irish links
- Towns of Londonderry
- Ancient Irish Surnames and Modern Versions
- Parish of Londonderry,RC
- Orangenet
General Irish Genealogy
