LONGNECKER, Henry Clay, lawyer, born in Allen, Cumberland County, Pennsylvania, 17 April, 1820; died in Allentown, Lehigh County, Pennsylvania, 16 September, 1871. He was educated at the Norwich military academy, Vermont, and entered Lafayette college in 1841, but was not graduated. He was admitted to the bar in January, 1843, and practised in Northampton and Lehigh counties. He served in the Mexican war in 1847-'8 as 1st lieutenant and adjutant of voltigeurs, being wounded at Chapultepec, and in 1848 was chosen district attorney of Lehigh county. He was a member of state Democratic conventions in 1851 and 1854, but in 1856 became a Republican, and in 1859-'61 was a member of congress, where he served on the committee on military affairs. He became colonel of the 9th Pennsylvania regiment in 1861, led a brigade in western Virginia at the beginning of the civil war, and commanded a brigade of militia at Antietam. In 1867 he became an associate judge of Lehigh county.