In Reply to: gallaghers posted by carol jones on December 18, 2006 at 22:36:48:

FWIW, from a Yank, I found the following on an Ask.com search:

Irish Naming Conventions

The 1st son was usually named after the father's father
The 2nd son was usually named after the mother's father
The 3rd son was usually named after the father
The 4th son was usually named after the father's eldest brother
The 5th son was usually named after the mother's eldest brother
The 1st daughter was usually named after the mother's mother
The 2nd daughter was usually named after the father's mother
The 3rd daughter was usually named after the mother
The 4th daughter was usually named after the mother's eldest sister
The 5th daughter was usually named after the father's eldest sister

I hope this is of some use to you.