Thank you, Shaun.
I did get someone to research for me at the Rifle Brigade museum, but I didn’t get THAT information!
They did reckon that he would’ve rejoined his regiment (although I think they were in Gibraltar when he was released, so they weren’t too sure what would’ve happened).
I don’t have military record access, which makes things harder... as does the fact that he married in Ireland (although his marriage registration DID survive - Church of Ireland).
I really appreciate your assistance
Margaret