« Reply #49 on: Thursday 26 July 18 20:39 BST (UK) »
One of the witnesses to the marriage was a Margaret Taylor (could that have been her mother
)
Or did both her Mother/Father pass away in or before 1920 as indicated by the ancestry tree. 
Sorry, missed a few posts

No Taylor or McLaughlan for 8 Chalmers Street.
Was the (deceased) for father written in full, if so, I think it does state mother deceased (in full) rather than sometimes written as 'dec'd'?
Will check for Taylor & McLaughlan in Greenock 1920.
Annie
South Uist, Inverness-shire, Scotland:- Bowie, Campbell, Cumming, Currie
Ireland:- Cullen, Flannigan (Derry), Donahoe/Donaghue (variants) (Cork), McCrate (Tipperary), Mellon, Tol(l)and (Donegal & Tyrone)
Newcastle-on-Tyne/Durham (Northumberland):- Harrison, Jude, Kemp, Lunn, Mellon, Robson, Stirling
Kettering, Northampton:- MacKinnon
Canada:- Callaghan, Cumming, MacPhee
"OLD GENEALOGISTS NEVER DIE - THEY JUST LOSE THEIR CENSUS"