The 1939 Register for Somerville House, 130 Banbury Road, and here are Grandpa William Archer (WGRA) and two of his three daughters, plus a cook and a house parlour maid. His wife, my Grandma Lizzie, whom I never met, because she died in 1938, three years before I was born, had died of (I believe) a form of cancer, after treatment (so my dad, FGBA, said) that was very painful, by radio-therapy.
Interesting that the doctor ("medical practitioner") next door's wife (presumably as she has the same surname) is entered as doing 'unpaid domestic duties', which I noted is much the same as for my Gran (dma) Rosa Penfold, and in that latter case had assumed it was a 'Penfold' eccentricity to refer to the marital relationship thus. But perhaps it was a normal way in the 1939 Register, to avoid needing to record whether people were married or not, which might have caused difficulty.