Again using FreeBMD, this is her birth:
June qtr 1909
Southwark district vol 1d, page 39
Allery, Grace Rosetta
Electoral Rolls of 1931, 32 and 33 show:
Top Floor, 76 Glengall Road, SE15
Allery, Charles Arthur
Allery, Fanny
Allery, Florence Lena
Allery, Grace Rosetta
And her parents marriage:
20th July 1903 at Christ Church, Southwark by banns
Allery, Arthur Charles 18 Bachelor, Labourer, 1 Isabella Street
Brookes, Fanny 18, Spinster, 2 Isabella Street
His father: Frederick Allery, Mechanic
Her father: Samuel Brookes, Policeman