The late Mrs Archer's father, Lt Marcus Reginald Cholmeley OVERTON (30 IV 1901 - 7 VI 1940), died on active service in the Second World War. He had married Mrs Archer's mother, Kathleen ("Toni") WARD (1903 - 1998), on 16 July 1932.
Lt Overton was the third son of the Rev Canon Frederick Arnold OVERTON (15 VII 1862 - 11 IX 1935), Rector of East Barnet and Canon of St Albans, and his wife (married 16 VI 1891), Ella Georgina EDERSHEIM (1863 - 14 VII 1947), daughter of the noted Biblical scholar, the Rev Alfred EDERSHEIM, DD (7 III 1825 - 16 III 1889). His older brother, Lt Thomas Darwin OVERTON (18 VII 1894 - 31 VII 1915), was killed in action at Gallipoli; their eldest brother, Sir Arnold Edersheim OVERTON, KCB, KCMG, MC (8 I 1893 - 10 IX 1975), was a senior civil servant.
The Rev Canon Frederick Arnold Overton was the eldest child of the Rev Samuel Charlesworth OVERTON (1837 - 1909) and his wife (married 1861), Harriet Emma FOX (1837 - 25 V 1922), daughter of the Rev William Darwin FOX (23 IV 1805 - 8 IV 1880), and his first wife, Harriet FLETCHER (1799 - 1842), daughter of Lt-Col Sir Richard FLETCHER, 1st Bt (1768 - 31 VIII 1813). The Rev William Darwin Fox was a second cousin of Charles Robert DARWIN (12 II 1809 - 19 IV 1882), the naturalist.
Mrs Archer's husband, Ronald Walter ARCHER, died on 6 February 1992. His father, Lt-Cdr Norman Ernest ARCHER, CMG, OBE (27 VIII 1892 - 15 II 1970), was the youngest child of Walter Edward ARCHER, CB (4 VII 1855 - 19 VIII 1917) and his wife (married 17 X 1878), Alice Liona MURRAY, a great-great-granddaughter of the 3rd Duke of Atholl.