Douglas Blackburn (1857-1929) who also wrote under the pseudonym Sarel Erasmus, was the British author of: Prinsloo of Prinsloosdorp (1899), A Burgher Quixote (1902), Richard Hartley: Prospector (1905), I Came and Saw (1908), Leaven: A Black and White Story (1908), The Detection of Forgery (with Captain Waithman Caddell) (1909) and Love Muti (1915). He was an Expert to the Natal Criminal Investigation Department, and the Transvaal Republic.