Henry George and Matilda Duffin were at 28 Myrtle Road, Hounslow in 1938.
Possibly his parents lived there as well. I don't think Henry G and Matilda are listed in 1939.
But the free index to the 1939 Register does have Henry G Duffin born 1915 at 28 Myrtle Road.
Meanwhile that free index (which we can quote on Rootschat) has
Matilda Dowling (Dubbin), born 1917, at "Caravenus" Vine Place, Heston And Isleworth.
Could that be "caravans"?
We also get the piece/item reference in the address bar, so we can search for all names on the page in the free index
They include "Lena" Smith, born 1881, and Walter Smith, born 1898, also in "Caravenus"