Career
Ellerton joined the Royal Navy in 1884. He served in World War I and, as Captain of HMS Cornwall, took part in the Battle of the Falkland Islands in December 1914. He was commended for his service in Gallipoli in 1915.
Promoted to Rear Admiral in 1921, he was appointed Director of Training and Staff Duties at the Admiralty that year, Senior Naval Officer in Gibraltar in 1923 and Commander-in-Chief, East Indies Station in 1925.
He retired in 1929.