I was wondering if anyone could help me with a brick wall I have on my family tree (I have been stuck on it for over a year.
-I am looking to find their parents and Siblings since for both of them I only have information on them after they were married.
-I am also looking for the Date of Death of Thomas Johnson
-I am also trying to find out how Fanny Wilmot last name turned out to be "Jaques" upon her last marriage
Facts
Thomas Johnson born 1848 • Maidstone, Kent, or Exeter, Devon England and Died

married 14 Jan 1877 • London, England to
Fanny Wilmot (born 3 FEB 1851 • Holy Trinity, Bristol, Gloucester, England died 18 JUN 1923 • Bath, Somerset, England)
They had a Daughter (my great grandmother)
Ruby Ingram Johnson born 16 DEC 1877 • Southampton, Hampshire, England and died 10 NOV 1956 • Kensington, London, England
1881 census, Thomas, Fanny and Ruby Johnson lived 38 Bignor St, Cheetham, Lancashire
1891 Thomas, Fanny Johnson ""Brixton, Lambeth, London, England” (no Ruby living with them?) maybe a different couple?

I think Thomas Johnson died 13 Mar 1891 buried in Prescot, Lancashire, England. Yet I am not sure if it was the same person I am related to???
1901

I have found "Fanny Marchmont” with her husband ""Arthur W Marchmont”
In ""Bristol, Somerset, England”
( I know that Fanny married Arthur Marchmont for two reasons
1. Ruby Fortt nee Johnson inherited Arthur Marchmont estate upon his death and I have record of that.
2. Ruby Fortt nee Johnson told my mom her mom Fanny married a well know Author Arthur W Marchmont. (record shows Arthur Marchmont married a Fanny Jaques, I have no Idea where the Jaques name came from???
1911 I have a Fanny And Thomas Johnson living at "50 Effra Parade, Brixton SW I think this is a different couple with the same name and Thomas with the same Birth year.

? Which makes me think I have had two couple mixed up???
Anyways I would appreciate any help clearing this up
Thanks