Leavenworth is a town in Jennings Township, Crawford County, Indiana, along the Ohio River. The 2010 US Census recorded a population of 238 persons. History Foundation and early settlement Leavenworth was laid out in 1818 in an oxbow of the Ohio River, directly under a large bluff called Mt. Eden. The bluff forms part of the Indiana Ridge and faces directly across the river toward Kentucky. "Old Leavenworth" (the original town, now practically abandoned) was almost completely wiped out by the huge 1937 Ohio River flood, as it was built directly on the floodplain. The town was founded by Zebulon Leavenworth and his brother Seth, natives of Connecticut. In 1824, a wood yard was established in the town to provide fuel to steamboats, and David Lyon had a boatbuilding industry here in 1830. The Whitcomb brickyard was also a flourishing industry. The Crisis, Crawford County’s first newspaper, was begun in Leavenworth in 1839. In 1835, Zebulon started a stage line from Leavenworth to the new state capitol in Indianapolis, a route intended primarily for students going to the new State College in Bloomington (later Indiana University) and for boatmen returning from downriver. Riverboat men returning from New Orleans were thought to be carriers of the yellow fever and cholera epidemics that often devastated the Ohio Valley frontier. Seth Leavenworth advocated the construction of a marine hospital for the purpose of quarantine and medical treatment, which he hoped to build somewhere near the town of Leavenworth. The bill he put before the Indiana legislature was never enacted. In 1843, Leavenworth supplanted Fredonia as the county seat. Leavenworth remained the county seat until 1896, when the county records were stolen by a mob in a notorious armed “courthouse war" against the town of English. Seth Leavenworth eventually left Indiana and moved to Missouri, where he died in 1854. His son Zebulon, named after the boy's uncle in Indiana, became a famous riverboat pilot on the Mississippi River and was a friend of Mark Twain before Twain became a writer. Together, they piloted the steamboat Nebraska past Memphis at the outbreak of the Civil War, receiving gunshots across their bow as a warning to halt. The Hines Raid, 1863 In June 1863, a 25-year-old Confederate spy from Kentucky, Thomas Hines, was sent by General John Hunt Morgan to ride north into Indiana and reconnoiter with Southern sympathizers there, whose dedication to the Southern