Spanish started hunting for the gold. Benguet Province was entered by the Spanish with the intention of obtaining gold. The fact that the Igorots managed to stay out of Spanish dominion vexed the Spaniards. The gold evaded the hands of the Spaniards due to Igorot opposition. The Igorot would also be used as mercenaries and scouts during the Philippine Revolution and the Philippine-American War. American colonial era Samuel E. Kane wrote about his life amongst the Bontoc, Ifugao, and Kalinga after the Philippine–American War in his book Thirty Years with the Philippine Head-Hunters (1933). The first American school for Igorot girls was opened in Baguio in 1901 by Alice McKay Kelly. Kane argued that Dean C. Worcester "did more than anyone man to stop head-hunting and to bring the traditional enemy tribes together in friendship." Kane wrote of the Igorot people, "there is a peace, a rhythm and an elemental strength in the life...which all the comforts and refinements of civilization can not replace...fifty years hence...there will be little left to remind the young Igorots of the days when the drums and ganzas of the head-hunting canyaos resounded throughout the land. In 1903, Missionary Bishop Charles Brent traveled through northern Luzon, in hopes of directing missionary efforts to convert the pagan Igorot populace. A mission church was established for the Bontoc Tribe of the Igorots in the Bontoc, Mountain Province. The Bontoc missionaries wrote the first Igorot grammars, which were published by the government. In 1904, a group of Igorot people were brought to St. Louis, Missouri, United States, for the St. Louis World's Fair. They constructed the Igorot Village in the Philippine Exposition section of the fair, which became one of the most popular exhibits. The poet T. S. Eliot, who was born and raised in St. Louis, visited and explored the Village. Inspired by their tribal dance and others, he wrote the short story, "The Man Who Was King" (1905). In 1905, 50 tribespeople were on display at a Brooklyn, New York, amusement park for the summer, ending in the custody of the unscrupulous Truman Hunt, a showman "on the run across America with the tribe in tow." On February 12, 1912, a Mountain Province Igorot chief named Gagaban became the first Filipino to fly in an airplane, riding as a passenger in a biplane called the "Red Devil" with Lee Hammond as the pilot. World War II