That other link you gave me, deals mainly with Northern Ireland...have just gone through their databases...they have very few of Southern Ireland, and those they have, the dates are a bit off to when we are looking at.
I haven't ruled out yet that service record that you saw in TNA. The kids could either have been fibbed to, or they all fibbed...who knows...
I still haven't managed anyone who can really help with the Royal Artillery side of things. On Emily's MC, she says he was a Sergeant Major, but on her birth cert, yes, he was a sergenat major, but he was a pensioner. He could well have been dead when she got married.