If that's Lilian Henshaw in Barking, she's listed as a widow.
I wonder if Lilian was previously living with Joseph Henshaw's brother Judah? 

Births
HENSHAW, JUDAH       
Mother's Maiden Surname: SOLOMONS
GRO Reference: 1902  J Quarter in STEPNEY  Volume 01C  Page 387
HENSHAW, JOSEPH       
Mother's Maiden Surname: SOLOMONS  
GRO Reference: 1904  M Quarter in STEPNEY  Volume 01C  Page 381
1911 census
https://www.familysearch.org/ark:/61903/1:1:XWP3-HHMMarriage
June 1928 St. Martin 1a 1254
Judah Henshaw + Elfreda E. Muller
1931 in Paddington (electoral register)
270 Elgin Avenue
Jack Henshaw
Elfreda Elizabeth Henshaw
Then in 1935, Marylebone
4 Coryton House, Upper Marylebone Street
Jack Henshaw
Lilian Ruth HenshawDeath
June 1936 Paddington 1a 31
Henshaw, Judah    
Age 34    
Apparently Judah was buried 31 March 1936 at East Ham Jewish Cemetery.
It would explain perhaps why Lilian was a widowed Henshaw in 1939, though (presumably!) she hadn't actually been married to Judah.