Hi,
There is a Fanny Louisa BARTON in the 1911 census living in Wolverhampton, she was born in 1883 in Wigan, Lancashire. 
Baptism
St Catherine's, Wigan
Fanny Louisa BARTON
DOB:  3 Aug 1882
Baptism:    14 Oct 1882
Parents:  James and Fanny
Abode:   124 Whelly?
Occupation:   Clerk
This family are in Wolverhampton in 1891,1901 and 1911. I think that she is more likely to be the Fanny Louisa BARTON that marries Harold J STREET.
In 1939 the DOB for Fanny Louisa STREET is 3 Aug 1882.
Regards,
Daisy