An old memory just occurred to me. When we wre in Ireland in 1991we stopped at a rectory and talked to a priest re: records relating to Wm. O'Connor. As I watched he consulted his computer looking at Connor And Connors. I mentioned that we were looking for an O'Connor. He then related that the "O's" were never entered into his records because they were very common or some such reason which I now forget. I guess what I am thinking is that if you are looking for anO'Leary, for instance, and come across a Leary which fits into your search, you may want to follow thru with it. this is what took place with me in this one rectory and may or may not be a common practice anywhere else.