I have at last received an official copy of the Entry of Marriage for a James Knighton and the former Charlotte White – the possible parents of my father James Albert Knighton, as discussed in the above comments.
The details are: Marriage took place at St. Aidan's Parish, Liverpool, 22 July 1891 between James Knighton aged 21 and Charlotte White aged 22. James was a bachelor and was a mariner, Charlotte was a spinster with no profession given -- [ however, elsewhere, in a census document, she was listed as a Soap Packer] – they were both living at 113 Lamb Street at the time of marriage and James Knighton's father is also a James Knighton, a weaver. Charlotte's father is Alfred White, carpenter. Witnesses were Charles Barber and Caroline Harden
With that information I was hoping to establish a firm link between them and my father James Albert Knighton, but I am not so sure that has been accomplished -- the main reason being that the father of the newly married Charlotte Knighton is given as Alfred White, whereas I seem to recall the father given for Charlotte Knighton's sister, Mary (Maria) was given elsewhere above as Patrick White. Also I would have expected Charlotte's sister Mary to have been a witness – as she was as godmother on every one of Charlotte's children's baptisms.
I know from baptism and other records that I have the right names for James Albert's mother -, I am trying to confirm the name of his mother's father ---- “somebody” named White.