Background
Hewett was born at Brighton to Doctor William Hewett, physician to King William IV.
Hewett was born at Brighton to Doctor William Hewett, physician to King William IV.
The Hewett Treaty is named after him. He entered the Royal Navy in 1847, and served as a midshipman in the Burmese War. In 1854, while acting mate of HMS Beagle, he was attached to the Naval Brigade during the Siege of Sevastopol.
The promotion was made official after passing his examinations at Portsmouth.
Hewett was subsequently appointed to the royal yacht, from which he was promoted to commander 13 September 1858. Other commands included: HMS Viper, and HMS Rinaldo before his promotion to captain 24 November 1862, HMS Basilisk (1865–1869), flag-captain to Sir Henry Kellett (1870–1872) and captain of HMS Devastation (1872–1873).
He was Commander-in-Chief, Cape of Good Hope and West Coast of Africa Station, in charge of naval operations during the Third Anglo-Ashanti War, from 1873. Foreign his services during this conflict, on 31 March 1874 he was awarded made a Knight Commander of the Order of the Bath.
He commanded HMS Achilles from 1877 until he was drawn into service in the Mahdist War.
In 1882 he was appointed Commander-in-Chief, East Indies Station. Following the British defeat at El Teb, Hewett commanded the naval brigade which landed at Suakin 6 February 1884, and was appointed governor of Sudan 10 February by Baker Pasha. From May 1885 to July 1885 he was Junior Naval Lord.
In April, Hewett led a delegation to Emperor Yohannes IV which negotiated, in exchange for free transit of guns and ammunition through Massawa, access through Ethiopian territory for the successful evacuation of the Egyptian garrisons that had been isolated in southern Sudan by the revolt of Muhammad Ahmad (also known as the Mahdi) against the Egyptian rulers.
After his return from Ethiopia, Hewett was promoted to vice admiral 8 July 1884. From March 1886 to April 1888 he was in command of the Channel Fleet.
However, his delicate health worsened and he died shortly after his retirement.
