Have been doing a bit of rummaging around

Thought I would just put an update here of what I have done so far, and also some of the suggestions that Monica has pm'd me.
First of all, it appears that Alexander McMinn Snr married Bridget Cleary in 1846 in a
protestant church. Monica pm'd me a new link for LDS records for Ireland, and I found the index there, and I have emailed the GRO Dublin to see if I can get a copy of the marriage cert. I have also rang the Old St Mary's Church, in Clonmel and left a message. (from the marriage cert, I'll get the bride and grooms father's, plus the occupation of the groom)
Monica has been looking in TNA for me, but so far, nothing doing!
George Charles (brother to Elizabeth) in 1901 was a Company Segeant Major in the RFA, and he was actually at the base...i wonder if his attestation records still exist, and whether it would have details of his father's rank etc.
Monica has raised a good question...
Bridget McMinn was possibly found in Woolwich with her son George, and another boy Philip, also listed as her son. (RG11 Piece: 743 Folio: 113 Page: 39) Monica suggested that Philip (as he appears to have been registered Alexander Philip in Gravesend) could possibly be a son of one of her daughter's. Perhaps of the elusive Caroline?
I am still trying to ascertain: when they (and who) came to England, who was Caroline, and where was she prior to 1901, and the biggest question of all who was Alexander McMinn? (Eventually, I'd like to be able to trace him, if we could only find out a few details on him!)
Finally, I cannot understand this Cleary/McGrath...are there any possible scenarios that they could have been the same woman?