Doon is a townland in the Parish of Tomregan, Barony of Tullyhaw, County Cavan, Ireland. The townland name is an anglicisation of the Gaelic placename “Dún” which means ‘A fort’. The oldest surviving mention of the name is in the 1609 Ulster Plantation map where it is spelled ‘Doone’. At the time of the Ulster plantation it was split into two townlands, Doon and Tennegh. In an Inquistion dated 20 September 1630 the two townlands were spelled ‘Downe’ & “Enagh” but by the Down Survey of 1655 both townlands were merged into Doon.
It is bounded on the north by Mucklagh & Rakeelan townlands, on the east by Annagh townland, on the south by Derryginny townland and on the west by Gortoorlan townland. Its chief geographical features are the Shannon-Erne Waterway and some drumlin hills reaching an altitude of 200 feet (61 m) above sea-level.
The major part of Ballyconnell town is situated in Doon and the townland is traversed by the Bawnboy Road, Church Street, Main Street, Bridge Street, Preaching House Lane, Mucklagh Lane and the Border Road.
The townland covers 125 statute acres, including 4 acres (16,000 m2) of water. It formed part of the Manor of Calva which was granted to Walter Talbot in 1610 as part of the Plantation of Ulster. The Hearth Money Rolls of 1664 list the occupiers of Ballyconnell as Thomas Gwyllym, John Squire, Henry Jordan and Denis Alarne, but this would have included both Doon and Annagh townlands as Thomas Gwyllym was the owner of Ballyconnell Castle and lived in Annagh. Griffith's Valuation of 1857 lists about 90 landlords and tenants for Doon and Ballyconnell. The 1841 Census of Ireland gives a combined population of 671 for Doon and Ballyconnell, of which 333 were males and 338 were females, with 127 houses, of which 12 were uninhabited. Further information and a detailed map showing the location of each holding can be seen online[1]. The 1851 Census of Ireland gives a combined population of 667, a decrease of 4 on the 1841 figure, due to the intervening Irish Famine of 1845–47, of which 331 were males and 336 were females, with 119 houses, of which 7 were uninhabited. The decrease was minimal compared to other townlands, due to work being available in the town. In the 1911 census of Ireland, there are over 100 families listed in the townland and in Ballyconnell.[2]
The historic sites in the townland are a double-court cairn erected c. 2,500 B.C. (Site number 31, page 7, Doon townland, in “Archaeological Inventory of County Cavan”, Patrick O’Donovan, 1995); a prehistoric ring-barrow erected c. 1,000 B.C. (Site number 107, page 22, Doon townland, in “Archaeological Inventory of County Cavan”, Patrick O’Donovan, 1995); Tomregan Church & Graveyard (erected in 1756 on the site of an older church built in the 16th century); The ‘Tomregan Stone’ Romanesque sculpture, carved c. 1150 A.D. (Site number 1641, page 195, Doon townland, in “Archaeological Inventory of County Cavan”, Patrick O’Donovan, 1995); Ballyconnell Courthouse (erected in 1833); Ballyconnell Methodist Chapel (erected in 1869); Ballyconnell Market House (erected in 1838); Ballyconnell Mill (erected c. 1720).