Hayley,
Thank you for your reply.
If you could supply further details I would be very grateful.
As a quid pro quo I can supply details of Mary's offspring by her first two marriages. (My much loved grandfather, George McGill, was the son of James Thomas McGill, Born 6th February 1862, mother stated as Mary Anne McGill, late McGll, formerly Davis - which rather spells it out).
This has been a rather frustrating brick wall.
The Bristol urban proletariat are not so easy to pin down. The McGills go back to a Glaswegian sailor who jumped ship at Bristol in 1793.
In contrast I have been able to trace multiple lines of descent of his spouse, who came from a small Somerset town, back to the 16th century.
regards
Andrew