Charles Grant Blairfindie Allen (February 24, 1848 - October 25, 1899) was a Canadian science writer and novelist, and a proponent of the theory of evolution.Allen was born near Kingston, Canada West (known as Ontario after Confederation), the second son of Catharine Ann Grant and the Rev. Joseph Antisell Allen, a Protestant minister from Dublin, Ireland. His mother was a daughter of the fifth Baron de Longueuil. Allen was educated at home until, at age 13, he and his parents moved to the United States, then to France, and finally to the United Kingdom. He was educated at King Edward's School in Birmingham and at Merton College in Oxford, both in the United Kingdom