In 1929 he married Ethel Helen Nesbitt Walker (1905–1953), daughter of Colonel Reginald Selby Walker, DSO (killed in action 1918),[1] having two sons and a daughter:
Major St John Patrick Arcedeckne-Butler, Royal Signals, born 1930, married 1956 Jane (died 1983), daughter of Lieutenant-Colonel Frank Eric Massie MC, having issue.
Lieutenant-Commander Michael Francis Peel Arcedeckne-Butler, RN, born 1933, married 1961 Jacqueline, daughter of Colonel George Leonard Carpenter-Garnier OBEDL, High Sheriff of Hampshire (1967), having issue,
Timothy Garnier Arcedeckne-Butler, born 1962, married 1995 Nathalie, younger daughter of Muhammad Rawoo FCCA, having issue including an elder daughter, Emily Arcedeckne-Butler (born 1996), who became engaged in 2023 to marry Sam Gueterbock, heir-in-line to the barony of Berkeley.
Nicola Catherine Arcedeckne-Butler, MW, born 1964, married 1996 Jonathan Longden, and has issue.[5]
Christal Synolda Arcedeckne-Butler, born 1938, married 1961 Geoffrey William Medcalf JP (died 2009), having issue.
Exemplified to James Henry Edward Butler Esq, son of the Hon. St John Butler, by Anna Maria his wife, only daughter and heiress of Walter Arcedeckne Burke Esq, of Gortnamona, County Galway, upon assuming by Royal Licence, 4th November 1867, the additional surname of Arcedeckne.
Crest
1st, out of a Ducal Coronet Or, a Plume of five Ostrich Feathers therefrom a Demi-Falcon rising Argent a Label on a Crescent for difference (for BUTLER); 2nd, a Cubit Arm erect vested Argent charged with three Chevronels Sable the Hand Proper grasping a Sword Argent pommel and hilt Or (for ARCEDECKNE).
Escutcheon
Quarterly, 1st and 4th, Or, a chief indented Azure three Escallops in bend counterchanged, a Label on a Crescent for difference (for BUTLER); 2nd and 3rd, Argent, three Chevronels Sable (for ARCEDECKNE).[7]
^"1946 New Year Honours"(pdf). Supplement to The London Gazette. No. 37407. London Gazette (published 1 January 1946). 28 December 1945. p. 17. Retrieved 1 September 2018.