More to convince me that Annie Stevens / Lillingston is Rosanna Mansfield. 
Records on Ancestry. 
1905 Poor Law.
Thomas Michael Lillingston, painter,  14 Oval Road .Camden. 1 /11/05 = 16 / 11 / 05. Perhaps he was receiving poor relief. 
1911 Thomas Frederick Lillingston bapt July 1911 parents Thomas Michael and Annie. 23 Wellington Street Camden 
1910/11 Electoral Registers.  Thomas Michael Lillingston 23 Wellington Street. Camden 
No Annie as women didn't have the right to vote then.
1920. Camden Workhouse.  Admission 27 / 1 / 1920 discharged 5/2 /20. Harwell ? 
Thos. Michael Lillingston.  Painter. Ward 2. 6 Cathcart Street nearest relative Annie.
He could have been ill, many old workhouses were hospitals by then.
Thomas Michael Lillingston died 1930
1935 Electoral registers 
6 Cathcart Street. 
Lilian Florence Green
Rosanna Lillingston XXX
Frederick Thomas Lillingston 
 She has used her real name .
Annie and her daughter Lillian probably moved to Yorkshire because her son Frederick Thomas married Harriet Breese who was born there 
I just couldn't resist trying for more 😀