Quote from Mike M's post:
My suggestion is that you not focus your 1891 search on GGM's surname but on on her forenames, probable location (Kent/Surrey) and the names of her children who might have lived with her.
That's how I arrived at the Mary A Ellis and children in my previous post, Mary being born c1863 Kent, Lilian being born c1882 (surname at birth, Fox) Kent and Thomas being born c1888 (surname at birth Whines) London and living in the Newington St Saviour area as this was where Mary had a child in June 1891
Hazel was Mary's address on the birth certificate recorded as Uxbridge Street as well as the birth place for Arthur?
Another child??
WHINES, HANNAH MABEL mother's maiden name KNAPP
GRO Reference: 1886 S Quarter in ST SAVIOUR SURREY Volume 01D Page 126
this could be her in 1891:
https://www.familysearch.org/ark:/61903/1:1:QJXB-7T2and 1901 census:
https://www.familysearch.org/ark:/61903/1:1:X9F4-NVZLooking for a possible family link:
Possible marriage for Sarah and William Miller
Marriages Mar 1885
Miller William Edward Dartford 2a 511
Windsor Sarah Ann Dartford 2a 511
possible birth reg for their child Frank:
MILLER, FRANK EDWARD mother's maiden name WINDSOR
GRO Reference: 1891 S Quarter in DARTFORD Volume 02A Page 492
possible birth reg for Sarah Ann Windsor:
WINDSOR, SARAH ANN mother's maiden name
WHINES GRO Reference: 1860 S Quarter in DARTFORD Volume 02A Page 254
Added:
Possibly Sarah Ann with parents and siblings in 1861 census:
https://www.familysearch.org/ark:/61903/1:1:Q2MP-WKF2Possible marriage for Sarah Ann's parents:
Marriages Dec 1846
Whines Sarah Peterboro 15 726
Winsor Samuel Peterbro' 15 726