He was s of Capt Francis Jack CARTWRIGHT CVO OBE RN 1908-74 and Suzanne Elsie 1914-2001 d of Edgar GROTRIAN 1872-1949 (s of Frederick Brent GROTRIAN 1838-1905 who was f of Sir Herbert Brent GROTRIAN 1st Bt 1870-1951) and Elsie Mary FRAZER 1879-1960. He m 1970 reg Q3 Surrey Elizabeth A b 1945 reg Q3 Surrey d of Lt-Col Marcus Bertram Pemberton STEDALL OBE 1905-82 scion of that gentry family of Billington Manor by his 1936 m reg Q3 Westminster to Audrey Wishart COTTAM 1910-99, and had issue
1. Thomas (Tom) Francis b 1974 reg Q2 Surrey: m 2001 Georgina Sarah b 1974 d of Robert Bernard PETRE 1938-2018 (4xgt gs of 9th Baron PETRE 1742-1801) and Caroline Rosemary d of Lt-Col Peter JACKSON of Wappenham, Northants, and had issue
1.1 Hugo Francis b 15 Oct 2003 (Times 18 Oct)
1.2 Oliver (Ollie) Peter b 30 Oct 2005 (Times 4 Nov)
1.3 James William b 30 April 2008 (Times 8 May)
1. Caroline Lucy b c1972 reg Q1 London: m c2006 (eng Times 15 Sep) Ingolf Peter b Dec 1969 s of H-P KAISER of Bremen & Wargrave, and had issue
1.1 (Thomas) Alex(ander) KAISER b 2008 reg Q4 Reading
1.2 Richard Peter KAISER b 2011 reg Q4 Reading