I managed to have a look at the Marriage Register at St Paul's today. I found the details of the marriage which are:
Date: 3rd October 1922
William Herbert Hughes, aged 25, bachelor, a labourer of 7 Alexandra Road, Llandudno. His father: John William Hughes, labourer.
Ellen Elizabeth Byatt, aged 23, spinster. No occupation given. of Baron Hill, Great Orme. Father: William Byatt, a miner.
This will hopefully fill in a couple of gaps. As we thought, William was living in Llanrhos Parish and Ellen in Llandudno Parish.