There is a marriage in 1922 in which there are five female names and only four male
LINK to Civil Record Reference Dublin South 1922 Q2 V2 P418This is a free site; another paid site gives the full list of names recorded on this page
A mismatch of names usually indicates that one of the women was previously married
and it shows both her current name and her maiden name
(but sometimes it is just two spellings of the same name)
In this case there is a Margaret OWEN and a Margaret IRVINE shown
By elimination through searches:
Percival Harold BENWELL m Beatrice DOUGLAS,
Shuckburgh U L CLEMEMTS m Rosamund C C BURROWES, and
Robert Samuel CODE m Blanche WARDLAW;
this leaves William DAWSON as the most plausible spouse should this record be relevant.
I would suggest that you order this record and check;
The 1925 death certificate for Margaret's mother could help confirm this also
Happy hunting
