Henry Evered Haymes SBStJ MRCS LRCP (17 March 1872-15 March 1904), was a British surgeon in the Royal Army Medical Corps, Senior Medical Officer and one of the original explorers of the Bahr-el-Ghazal region in what is now South Sudan, instrumental in containing a cholera pandemic in Alexandria in 1902, later Inspector of the Bahr-el-Ghazal Province and an officer who died of wounds received in a Nyam Nyam ambush at the age of 31 on a patrol to avenge the murder of another British officer, Captain Scott-Barbour. He was admitted to the Venerable Order of St John as a Serving Brother in 1901 and awarded the Order of the Medjidie (4th Class) in 1902