He was s of Horace Corner DEBENHAM 1903-93 by his 1927 m reg Q2 London to Audrey Evelyn COTTERELL 1906-86. He m 1961 Jane Elizabeth b 1930 d of Cmdr Noel Charles Mansfeldt FINDLAY RN 1899-1976 scion of that Scots gentry family of Boturich (and 7xgt gs of the Duke of MONMOUTH & BUCCLEUCH 1649-85 illegt s of King CHARLES II by Lucy WALTER) and Lady Mary Cecilia LEGGE 1906-2003 d of 7th Earl of DARTMOUTH 1881-1958 and Lady Ruperta WYNN-CARINGTON 1883-1963 d of 1st & only Marquess of LINCOLNSHIRE and Hon Cecilia Margaret HARBORD 1856-1934 d of 5th Baron SUFFIELD 1830-1914 and Cecilia Annetta BARING 1832-1911 (gd of Sir Farncis BARING 1st Bt 1740-1810 who was f of 1st Baron ASHBURTON 1773-1848, etc), and had three daus.
See here for the Findlay descent from the ill fated Duke of Monmouth: https://groups.google.com/g/peerage-news/c/CBFurF6bhvM/m/PBEALkF05IwJ