There is no sign of a Rees Watkins, mother's maiden name of Stephens on the GRO Index search?
WATKINS, REES mmn STEPHENS
Q1 1902 SOLIHULL Volume 06D Page 617
Is this your G.Grandmother from Cinderford on the 1911 & 1901 censuses?
free index from familysearch
1911 census
https://www.familysearch.org/ark:/61903/1:1:X7P3-WG5Rhesa Watkins Head widow 39 Cinderford, GloucestershireArchie Watkins Son 18 Cinderford, Gloucestershire
Stanley Watkins Son 16 Abertillery, Monmouthshire
Morgan Watkins Son 13 Abertillery, Monmouthshire
Wilfred Watkins Son 12 Abertillery, Monmouthshire
Rees Watkins Son 9 Birmingham, WarwickshireMornington Watkins Son 6 Abertillery, Monmouthshire
Mornington WATKINS
mmn STEPHENS1905 J Quarter in BEDWELLTY Volume 11A Page 81
1901 census
https://www.familysearch.org/ark:/61903/1:1:XS8M-YS7 Albert Watkins Head Male 57 Much Birch, Herefordshire
Jane Watkins Wife Female 51 Little Dean, Herefordshire
Beatrice Watkins Daughter Female 18 Cinderford, Gloucestershire
Rhesa Watkins Daughter-In-Law Female 29 Cinderford, GloucestershireArchibald Watkins Grand Son Male 8 Cinderford, Gloucestershire
Stanley Watkins Grand Son Male 6 Abertillery, Monmouthshire
Morgan Watkins Grand Son Male 4 Abertillery, Monmouthshire
Wilfred Watkins Grand Son Male 2 Abertillery, Monmouthshire
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Rhosa Stephens Age: 19 Relationship: Servant
Birth Place: Cinderford, Gloucestershire, England
1891 census Piece: 1936 Folio: 130
Residence Place: Bath, Walcot, Somerset
Rhesa StephensRegistration Year: Dec 1892
Registration district: Westbury on Severn Volume: 6a Page: 486
married either
Charles Thomas Jones or
Oliver WatkinsIt looks as if Rhesa Watkins remarried
Rhesa Watkins. Spouse Surname: Roberts
Registration Year: 1912
Registration Quarter: Oct-Nov-Dec
Registration district: Bedwellty
Volume: 11a Page: 287
Thomas Roberts
and her death
Rhesa Roberts Death Age: 83
Registration Date: Jun 1954
Registration district: Bedwellty. Volume: 8c Page: 65