Hi ShaunJ, thanks for sticking with me.
The pension date and 1st Battalion of Artillery are certainly correct for my John Mills, but I am having trouble getting anywhere with your findmypast link. So I can't find any pension records. Also on the 1887 death cert you sent, do you think the age of John is 93 or 73?
It would be great if I could finally find out if John did end up back in Monaghan, so thanks very much for your help.
Rob