SLEAFORD (NEW), a market-town and parish in the wapentake of FLAXWELL, parts of KESTEVEN, county of LINCOLN, 18 miles (S. S.E.) from Lincoln, and 116 (N. by W.) from London, containing, with the hamlet of Holdingham, 2220 inhabitants. The name in ancient records is written La Ford and Eslaforde, which has been corrupted into Sleaford, and the epithet New given to distinguish it from Old Sleaford, an adjoining parish. A castle appears to have been erected here at an early period, but of its history there are few records, and of the building only some trifling remains. The town is situated on the main road from London to Lincoln; it is of respectable appearance, and is gradually improving in buildings and importance; it is well paved and lighted,. and the inhabitants are supplied with water from an adjacent 'spring, called Bully, or Boiling, wells. A small theatre was erected in 1824. A canal connects this town with Boston, Lincoln, and the Trent navigation, and thus promotes the prosperity of its general trade. The market is on Monday; and fairs are on Plough-Monday, Easter- Monday, Whit-Monday, August llth, and October 20th, for horses, cattle, sheep, and provisions. The quarter sessions for the parts of Kesteven are held here by adjournment from Bourne. The old town hall, being greatly dilapidated, has been pulled down, and a handsome edifice, in the later style of English architecture, erected. The living is a discharged vicarage, in the peculiar jurisdiction and patronage of the Prebendary of Lafford, or New Sleaford, in the Cathedral Church of Lincoln, rated in the king's books at £8. The church, dedicated to St. Denis, exhibits some fine specimens of almost every style of English architecture, and consists of a nave, aisles, a large chapel on the north side, and a chancel: at the west end ia a tower, erected about 1150, which is by far the most ancient part of the building j it is in the early style of English architecture, and is surmounted by a spire of later date, one hundred and forty-four feet high; an enriched spiral staircase leads to it on the south side. In the chancel are three fine stalls, in the later style; at its entrance are the screen and canopy of the ancient rood-loft. The entire structure is replete with interest: there are several ancient monuments, chiefly belonging to the family of Carr-, formerly lords of the manor. There are places of worship for those in the Connexion of the late Countess of Huntingdon, Independents, and Wesleyan Methodists. The free grammar school was founded, in 1604, by Robert Carr, Esq., who endowed it with £20 per annum: the master, who must be a graduate of one of the Universities, is appointed by the'Marquis of Bristol, as owner of the " late fair castle of Sleaford," for which he pays to the crown £40 per annum; the children of the town and neighbourhood are instructed gratuitously. A school was endowed with lands by William Alvey, in 1729, for the instruction of poor children': twenty boys and twenty girls are educated. An hospital, for a chaplain and twelve poor men, was founded and endowed by Sir Robert Carr, Bart., in 1636; the almsmen have weekly allowances of ten shillings and sixpence each, and a certain quantity of coal, with comfortable apartments, and the chaplain a salary of £20 per annum, to officiate in a chapel attached. The Bishop of Lincoln had anciently a magnificent palace here, in which King John sojourned a few days, but no part remains except the foundations; it is supposed to have been destroyed by Cromwell. A branch of the Ermin-street passes through this parish, and that of Old Sleaford.