OK -- at least you found it, which is more than I did!
Details are;
13/10/1898 Beechwood Bridge, Renfrewshire
Fred Gates aged 24, Ship Steward, Bachelor - 84 Cathcart St, Glasgow - father John Gates, Butcher, mother Annie Gates maiden surname Watson? deceased.
Janie Craig aged 22, Domestic Servant, Beechwood Bridge. Father Thomas Craig, Fishing Rod Manufacturer. Mother Agnes Craig, maiden surname Ross, deceased.
It seemed a pity for you to be so near, yet so far!
So the baptism found in the London baptisms on Ancestry for Frederick William looks like the correct one -- his father was John and a Butcher. Mother was 'Ann' or variant. They did like 'varying' their christian names didn't they!