« Reply #1 on: Monday 20 December 10 23:36 GMT (UK) »
I just got my brother's DNA test results and through research and contacting the FTDNA "RM222 Haplogroup Project" I discovered that he (my brother) fits the parameters of this group of possible descendants of King Niall. The article from FTDNA is at:
http://www.familytreedna.com/landing/matching-niall.aspx
Morris, Long, Brooks, Wallace, Mellon, Harvey, Nagle, Barnacle