Would it be worth eliminating:
1885/17710 Caroline Richardson mother Emily, father NR
This is a New Zealand Birth, and there is a Brighton in New Zealand (near Dunedin).
Sorry don’t have access to check these records out - could this be the same Caroline as above
New Zealand Electoral Rolls 1853 - 1981Caroline Richardson
Res. 1905-1906 - Dunedin South, Otago
Caroline Richardson
Res. 1911 - Dunedin West, Otago
RICHARDSON, CAROLINE LOUISA mothers maiden surname BATTS
GRO Reference: 1886 Sept Quarter in STEYNING registration district Volume 02B Page 297
A Caroline L. Richardson married either William Brown or George Whitten in 3q 1911, Brighton 2b 548
Death, Brighton 1947, Caroline Louise Brown aged 61 (i.e. born c. 1886)
From the free search 1939 register there is a Caroline & William BROWN living
in Brighton C.B., Sussex, England but no middle name and her birth year is a little later
Caroline Brown 1888
William Brown is also on this record
ADDEDThere is a Caroline Emma Richardson born 1889 Eastbourne Sussex she's with her siblings and
parents William John & Clara (nee EAGER) on 1891/1901 census
This Caroline E Richardson appears to have married Sep 1915 Eastbourne Walter G Colbran.
He died 1952 and his widow is named as Caroline Emma Colbran, she appears to have died 1975 age 85