Mrs Katherine Jane COATES, née JESSOP, would appear to be the Katherine J Jessop whose birth was registered in Reading in Q4 1947, mother's maiden name Forsyth. Her parents would appear to be the Richard H JESSOP and Sheila E W FORSYTH whose marriage was registered in the same place in Q4 1940.
The birth of Clara Cecilia NARBETH was registered in Colchester in April 1990. Per company records, her father, Ian Anthony NARBETH, was born on 15 December 1959, and her mother, Charlotte Clare NARBETH (née WALFORD-WHITE), was born on 4 June 1955.
Ian Narbeth is a grandson paternally of Horace NARBETH (4 III 1906 - 11 VI 2002) and his first wife (married 1927, as he first husband), Joan Eleanor Maud STEVENS (24 IV 1910 - 26 II 2003). Horace Narbeth, known professionally as Roye, was a celebrated photographer, specialising in nudes, who was stabbed to death at the age of 96 by an intruder at his home in the kasbah of Rabat in Morocco. Joan Stevens was an actress under the stage name of Joan Dare.
Joan Stevens married Horace Narbeth when she was 16, with the permission of her father, but after two sons and four years, the marriage ended in divorce. She was married, secondly, in 1932, to John Dingwall ("Ian") HASSALL (1899 - 1970), an artist with whom she later emigrated to Australia.
Ian Hassall was the only son, with two daughters, of the artist John HASSALL (21 V 1868 - 8 III 1948) by his first wife (married 1893), Isabel DINGWALL (c.1866 - 1900). John Hassall was married secondly, in 1903, to Constance Maud WEBB (1878 - 1950), by whom he had another son, Christopher Vernon HASSALL (24 III 1912 - 25 IV 1963), and a daughter, Joan HASSALL, OBE (3 III 1906 - 6 III 1988).
Christopher Hassall was a writer and lyricist, who was married in 1938 to (as her second husband) Mrs Evelyn H HILL, née CHAPMAN (the actress Eve LYNETT), with whom he had a son, Nicholas Edward HASSALL (1941 - 7 X 2018), and a daughter, the actress Imogen HASSALL (25 VIII 1942 - 16 XI 1980). He died on a train at Rochester, Kent, after suffering a heart attack whilst running for the train to see his daughter Imogen appear in a Royal Ballet School performance at Covent Garden.
Joan Hassall OBE was an artist and illustrator, who designed stamps and the invitation for the coronation of Queen Elizabeth II in 1953.