died the same year at the age of 51. Simonton spent the winter in Key West and the summer in Washington, where he lobbied hard for the development of the island and to establish a naval base on the island, both to take advantage of the island's strategic location and to bring law and order to the town. He died in 1854. The names of the four "founding fathers" of modern Key West were given to main arteries of the island when it was first platted in 1829 by William Adee Whitehead, John Whitehead's younger brother. That first plat and the names used remained mostly intact and are still in use today. Duval Street, the island's main street, is named after Florida's first territorial governor, William Pope Duval, who served between 1822 and 1834 as the longest-serving governor in Florida's U.S. history. William Whitehead became chief editorial writer for the Enquirer, a local newspaper, in 1834. He preserved copies of his newspaper as well as copies from the Key West Gazette, its predecessor. He later sent those copies to the Monroe County clerk for preservation, which gives us a view of life in Key West in the early days (1820–1840). In the 1830s, Key West was the richest city per capita in the United States. In 1846, the city suffered severely from the 1846 Havana hurricane. In 1852 the first Catholic Church, St. Mary's Star-Of-The-Sea, was built. The year 1864 became a landmark for the church in South Florida when five Sisters of the Holy Names of Jesus and Mary arrived from Montreal, Canada, and established the first Catholic school in South Florida. At the time it was called Convent of Mary Immaculate. The school is still operating today and is now known as Mary Immaculate Star of the Sea School. American Civil War and late 19th century During the American Civil War, while Florida seceded and joined the Confederate States of America, Key West remained in U.S. Union hands because of the naval base. Most locals were sympathetic to the Confederacy, however, and many flew Confederate flags over their homes. However, Key West was also home to a large free black population. This population grew during the war as more enslaved black people fled from their masters and came under the relative safety of the Union garrison there. Fort Zachary Taylor, constructed from 1845 to 1866, was an important