Katherine The Hibernian Research Co is a good source. The Heritage Centre 26 Market Square Dungannon Cty Tyrone Bt70 1AB is also very good. The Barry name came from two brothers from Wales coming to Ireland in 1176 during the Anglo Norman invasion. There were so many of them they became known as Barry Mor. The Barrymore trio Ethel John and Lionel are all decendants of them according to the Irish dictionary of names. Patricia