You mentioned having some later directories? Is it possible to check and see in Henry is listed in any of them? If I can try and pinpoint a general time of death it might help me to find a death record for Henry Doyle.
So far I have had no luck with the marriage of Henry. Let's face it, Henry could have married anywhere and just settled in Belfast..... I guess I will have to start pulling every marriage record for a Henry Doyle around the time my great grandmother was born and just pray he was a watch/clockmaker when he married. Otherwise, I wouldn't know if I had the right Henry or not. :o(
Take care and thanks again,