The late Mrs Chamberlain was born on 9 November 1920.
Her maternal grandmother, Marie Eveleen MEREDITH, was the only daughter of the novelist George MEREDITH OM (12 II 1828 - 18 V 1909) and his second wife (married 20 IX 1864), Marie VULLIAMY (c.1842 - 1885).
Her paternal grandfather, Henry Parkman STURGIS, was MP (Liberal) for South Dorset from 1885 to 1886 and High Sheriff of the County of London from 1896 to 1897. He had been married, firstly, on 2 October 1872 to the Hon Mary Cecilia BRAND (18 I 1851 - 24 VI 1886), the fourth daughter of the 1st Viscount Hampden, by whom he had six children. His sister, Mary Greene Hubbard STURGIS (2 II 1851 - 27 II 1942) was married, firstly, in 1871 to Lt Col Leopold Richard SEYMOUR (1841 - 30 V 1904), a great-grandson of the 1st Marquess of Hertford, and nephew maternally of the 1st Viscount Hampden; her second marriage, in 1906, was to Bertram Godfray FALLE, 1st and last Baron Portsea (21 XI 1859 - 1 XI 1948).