High Quality Content by WIKIPEDIA articles! Sir Robert Charles Kirkwood Ensor (1877–1958) was a British writer, poet, journalist, liberal intellectual and historian. He is famous for his extremely popular volume of the Oxford History of England, covering the years 1870 to 1914. Originally the final volume, Ensor`s book has sold more copies than any other in the original fourteen part series, only A.J.P. Taylor`s fifteenth volume has sold more.