HANOVER, a borough of York county, Pa., U.S.A., in the fertile Conewago valley, 36m. S. by W. of Harrisburg and 6m. from the southern boundary of the State. It is at the intersection of several old turnpikes, and is served by the Pennsylvania and the Western Maryland railways. The population was 8,664 in 192o (98% native white) and was 11,805 in 193o by the Federal census. It is the trading point for a rich farming region, and is also a busy industrial centre, with III plants, producing a great variety of goods, valued at $17,000,00o annually. Hanover was laid out in 1763 or 1764, by Col. Richard MacAllister, and was incorpo rated as a borough in 1815. The first settlers were largely Ger mans, and it was named after the German city. On June 3o, 1863, a cavalry engagement was fought in the vicinity, preliminary to the battle of Gettysburg, between the forces of Gen. H. J. Kil patrick (Union) and Gen. J. E. B. Stuart (Confederate).