Thanks for updating us. The certificates are encouraging. As George William MADDISON was younger than his bride in 1925, it seems feasible that she would wish to understate her age.
His father is listed as a WILLIAM MADDISON "deceased" and her's THOMAS LAURRANCE.
What is
Thomas LAURRANCE's occupation as given on the marriage register please? There's a candidate family living in Islington in 1901 with a Rose M. LAURENCE aged 7. Her father Thomas is a bricklayer. All are born in Holloway (part of Islington). RG13/174 folio 87 page 13.
Married at the register office with a F DANKA and E MADDISON witnessing
Later in 1925, a John DANKA married Ellen MADDISON, also in Poplar. Could your 'F. Danka' actually be J. DANKA? Perhaps these witnesses are a female relative of George and her future husband?
So his sister was living with him at the time of his death (maybe the time of Rosina's as well)
She may just have been staying there temporarily to look after George (Rose having died the previous year).
and then his estate was left to her.
Not quite. There was no will, but administration of his estate was granted to Jean WOODROW at the Nottingham probate registry. Nottingham was therefore probably the most convenient probate office for her to attend, so she is unlikely actually to have been living in London.
In fact, I think
avm228 was spot-on with identifying the DUNKERLEY family -- see reply #17 above. The death index shows that a Jean WOODROW died in 1972 in Derby registration district (born 29 Sept 1897). The probate calendar shows ...
1972MORAN Jane Ann or WOODROW Jean of 12 Apiary Gate Castle Donington Leics died 16 October 1972 Administration Nottingham 13 December. £1000