John Young Filmore Blake or also known as John Y.F.
Blake and J.Y.F.
Blake was an Irish-American soldier and military writer.
He was born October 6, 1856, in Bolivar, Missouri, United States, and died January 24, 1907, in New York City.
He was an avowed advocate of resistance to British imperialism worldwide and fought as a foreign volunteer for the Boer republics during the Second Boer War.