JEFFERSONVILLE, a city and the county-seat of Clark county, Indiana, U.S.A., situated on the N. bank of the Ohio river, opposite Louisville, Kentucky, with which it is connected by several bridges. Pop. (1890), 10,666; (1900), 10,774, of whom 1818 were of negro descent and 615 were foreign-born; (1910 census), 10,412. It is served by the Baltimore & Ohio South-western, the Cleveland, Cincinnati, Chicago & St Louis, and the Pittsburg, Cincinnati, Chicago & St Louis railways, and by three inter-urban electric lines. It is attractively situated on bluffs above the river, which at this point has a descent (known as the falls of the Ohio) of 26 ft. in 2 m. This furnishes good water power for manufacturing purposes both at Jeffersonville and at Louisville. The total value of the factory product in 1905 was $4,526,443, an increase of 20% since 1900. The Indiana reformatory (formerly the Southern Indiana penitentiary) and a large supply dépôt of the United States army are at Jeffersonville. General George Rogers Clark started (June 24, 1778) on his expedition against Kaskaskia and Vincennes from Corn Island (now completely washed away) opposite what is now Jeffersonville. In 1786 the United States government established Fort Finney (built by Captain Walter Finney), afterwards re-named Fort Steuben, on the site of the present city; but the fort was abandoned in 1791, and the actual beginning of Jeffersonville was in 1802, when a part of the Clark grant (the site of the present city) was transferred by its original owner, Lieut. Isaac Bowman, to three trustees, under whose direction a town was laid out. Jeffersonville was incorporated as a town in 1815, and was chartered as a city in 1839.