The Brennen family is mainly Down, but includes Antrim and Fermanagh records
as well.
The Earls family and their connected families take in Fermanagh, Clare,
Galway - probably Antrim and Down as well, becuase I haven't checked every
surname yet!
The Kerr family and their connected families that I've looked at originated
in Co. Tyrone.
These are not your ordinary everyday family histories that we find on the
web.
with lots and lots of Irish Civil Registration information as well as parish
records here
Jane
1) The "Brennen Family Chronicles" at
http://www.dankat.com/brennen/brennen.htm
2) The "Earls Family Chronicles" at
http://www.dankat.com/earls/earls.htm
3) The "Kerr Family Chronicles" at
http://www.dankat.com/kerr/kerr.htm