British naturalist (1877-1938).
Charles Francis Massy Swynnerton CMG (3 December 1877 – 8 June 1938) was an English naturalist noted for his contributions to tsetse fly research. Swynnerton was born in Folkestone, Kent on 3 December 1877. His father was a senior chaplain in the Indian Army, and his mother the daughter of Major W. H. Massy, of Grantstown Hall, County Tipperary. Swynnerton spent his early years in India, returning to England to start his schooling at Lancing College in Sussex. In 1897 he was accepted at Oxford University, but emigrated to Africa instead. In Natal he met the renowned entomologist and authority