Hello again, You may be right about us both having William (born 1864) as our common Grt. Grt.
Grandfather. Imagine that! When I first started to take an interest in this family tree it must have been about 6 or 7 years ago and Aghadowey and Kingskerswell were very helpful as you will be see from previous posts, so have to admit that I haven't looked at it for a few years, it may take me a little time to go back through my notes, but I will try to get the information you are looking for.
Meantime, if William was your Grt. Grt. Grandfather who was your Grt. Grandfather?