One witness to Albert's marriage to Elizabeth Lovell in 1906 is Nellie Isabella Piddock, who married the following year to John James Rogerson. She was aged 21.
Cross referencing surnames of an Albert Edwin born c1882 and a Nellie Isabel[la] born c1886 reveals two births in Lambeth district. Albert Edwin Elcombe registered September Q 1882 and Nellie Isabel Elcombe March Q 1887. No mothers' maiden name shown for either.
At his marriage, Albert names his father William George Piddock, house decorator. Nellie names Alfred Piddock, painter.
This then gets a bit complicated, as there is a marriage of a widower Alfred Piddock in 1917 to Lucy Gertrude Elcombe. Lucy Gertrude however is aged 38; too young to be the mother of children born in the 1880s.
On 11 August 1880 a Lucy Elcombe was baptised at Kennington. Mother Phoebe. No father.
She can be found in the 1881 census as a boarder in Kennington in the household of Sophie Neal, along with a seven year old girl named Beatrice Louisa Piddock
.
1891 census:
Lewis Road, Brixton
Alfred Piddock 40 M Inn potman, Walworth, Surrey
Phoebe Piddock 37 M Romsey, Hampshire
Beatrice Piddock 16
Daniel Piddock 15
Lucy Piddock 10
Albert Piddock 8
William Piddock 6
Nellie Piddock 4
Rose Piddock 2
Lily Piddock 2m
Thomas Underwood lodger painter
Frank Hulett lodger painter
All children born in Lambeth
Alfred Piddock married Mary Ann Mills in 1873. (Beatrice Louise Piddock's Mmn is Mills)
He doesn't seem to have married Phoebe.
The births of Rose Ethel Piddock 1889, and Lilian Florence Piddock, 1890 were registered in Lambeth with Mmn Elcombe.
Lucy is the only child of Phoebe Elcombe/Piddock that I can see a baptism for.