Bertha married John Roper an iron smelting furnace stoker in Q1 1900. In 1901 they were living at 8 Aston street, with widowed mother Mary Ann and their two children Winifred (born 3rd March 1897 baptised at St Johns on 25th April) and Gilbert (born 15 September 1900, baptised at St Johns on 3rd October). In 1911 they were at 181 South street Park, with offspring Winifred, Gilbert, Donald (8), Douglas (6) and John's brothers Frank and Charles plus a couple of adult relations Kate Ellen Colk and Robert Charles Colk.
It's not obvious to me why Bertha was baptised at St Lukes in 1911.
FamilySearch.org City Road index of cremations
https://www.familysearch.org/ark:/61903/3:1:3QSQ-G9FH-8TR?i=52&cat=444385
Image 256 has:
1957
28727 Roper, Bertha, age 76, July 4.