Hi Mary Derry!
Bless you for your gem finding re: Francis McKenna's birth in 1872. I went back to the Family Search.org as you obviously got this information from there.
Found two more children to this couple in Ireland. Firstborn had the forename of his deceased grandfather/his mum's father which confirmed that the Francis McKenna and Mary Jordan is my couple.
With the information off the death record of Francis McKenna, I was able to identify a correct marriage record.
Sadly, it is only the church marriage entry, not civil one.
UHF made quite a pretty penny on this one! 6 pounds for a mere entry!
Nevertheless, I have a right Mary Jordan and her husband now. That is the main thing! The entry has my great great grandfather as the witness to his sister's marriage and it also showed that she had to get a dispensation from her parents (clearly, a parent--her mum) in order to marry him and it noted her parent's residence which is spot on!
The only thing confuse me terribly is that it was in Shankill which was mostly Protestant--quite surprised to see the Catholic church in this area as I thought this church was supposed to be in Falls area.
MaryDerry, thank you for that finding! With your help, I was able to confirm that Mary Jordan I found in the US marriage records was mine.
Kind regards,
Tees