Just looking at Irish marriages....
There is an entry for a William Barclay, 1st Qrt 1893 in Belfast, also a different entry for an Isabella Morton.
The references are the same for each entry:
Film No. 101257/ Vol. No. 1/ Page No. 410/ Digital Folder No. 4179389
Only the image entry no's are different: 9 for William and 37 for Isabella
Aghadowey, I'm lost with the Irish indexes

From this info, do you think these two are connected!
Monica