St John Desmond Arcedeckne-Butler

Major-General St John Desmond Arcedeckne-Butler (30 November 1896 – 4 February 1959), was a senior British Army officer and head of MI8.

Career
Educated in the USA and Switzerland, Arcedeckne-Butler entered the Royal Military College, Sandhurst, being commissioned into the Royal Munster Fusiliers in 1915. Serving with distinction in France and Belgium during the Great War, he was decorated with the Légion d'honneur and was one of the two young British Army officers sent to study at the prestigious École Supérieure d'Électricité (Supélec) in Paris at the end of World War I.

Arcedeckne-Butler transferred to the Royal Sussex Regiment in 1922 and then to the Royal Corps of Signals in 1923.

Between 1934 and 1939, Arcedeckne-Butler served as Superintendent of the Signals Experimental Establishment and as Army Member of the Experimental sub-committee of the Wireless Telegraphy Board.

Appointed Colonel in 1938, Arcedeckne-Butler joined the General Staff at the War Office in 1940 and, promoted Major-General (temporary), served as Deputy Director-General of the Ministry of Supply between 1941 and 1946.

General Arcedeckne-Butler was appointed Commander of the Order of the British Empire (CBE) in the 1946 New Year Honours, retiring from the British Army the same year. He later became a Director of Romary & Co. Ltd, Thermionic Products Ltd and other companies as well as a member of the Broadcasting Advisory Committee, Eire.

Family
Scion of the Irish Butler dynasty, his great-great-grandfather was the 13th Baron Dunboyne (1780–1850). His father, St John Henry Arcedeckne-Butler (1868–1914) married in 1896 Maud, daughter of Captain Albert Money, late RCRR, of Little Stodham House, Liss, Hampshire, and sister of Brigadier-General Noel Money.

In 1929 he married Ethel Helen Nesbitt Walker (1905–1953), daughter of Colonel Reginald Selby Walker, (killed in action 1918), 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, having issue.
 * Lieutenant-Commander Michael Francis Peel Arcedeckne-Butler, RN, born 1933, married 1961 Jacqueline, daughter of Colonel George Leonard Carpenter-Garnier, High Sheriff of Hampshire (1967), having issue,
 * Timothy Garnier Arcedeckne-Butler, born 1962, married 1995 Nathalie, younger daughter of Muhammad Rawoo, 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.
 * Christal Synolda Arcedeckne-Butler, born 1938, married 1961 Geoffrey William Medcalf (died 2009), having issue.

The Arcedeckne-Butlers are in remainder to the Dunboyne peerage title.