I thought I would add two exceptions to the naming pattern that was given. In the West Cork area it was common to name the oldest female after the father's mother. There was also some type of superstition among the Irish, but I cannot recall all of the details. It had to do with three males of the same name living at the same time: grandfather, father, and son. I am not sure if it was not good luck to have three with the same name who were also grandfather, father, and son all living in the same house or simply all living at the same time. So there would have been some families who would not have named the oldest son after the son's paternal grandfather.