HART, a parish in the north-eastern division of STOCKTON ward, county palatine of DURHAM, comprising the townships of Dalton-Piercy, Elwick, Hart, and Throston, and containing 590 inhabitants, of which number, 231 are in the township of Hart, 4 miles (W. N. W.) from Hartlepool. The living is a vicarage, With the perpetual curacy of Hartlepool, in the archdeaconry of Northumberland, and diocese of Durham, rated in the king's books at £ 11.17. 1., and in the patronage of the Crown. The church, dedicated to St. Mary Magdalene, has a low massive tower with Norman piers and arches, and contains an enriched font. In the register are recorded the deaths of eighty-nine victims to the plague in 1587. The strata of magnesian limestone extending across the country from Nottingham terminatesuin this parish.