Ida Lilian Metherell kept a flat in London until 1953 ( 401 Endsleigh Court, and then 675 Endsleigh Court). After 1953 she disappears from the electoral rolls.
Close to Regents Park (also mentioned in the marriage announcement "....of Morden and Regents Park").
Added: Full text of the 1947 marriage announcement in The Times:
METHERELL: SEDGWICK PRICE.-On Sept. 15. 1947, at Nakuru. Kenya Colony. CLAUDE MARTIN, Lieut.- Commander. R.N V.R.. late H.M.S. Cochrane. only son of the late Mr and Mrs. C. WARREN METIIERELL. of Southsea. to DIANA SEDGwICK PRICE. third daughter of the late Mr. and Mrs. R. H. Giles Bessant. of Morden. Surrey, and Regent's Park, London.