Derryginny is a townland in the Parish of Tomregan, Barony of Tullyhaw, County Cavan, Ireland.
The townland name is an anglicisation of the Gaelic placename "Doire Goinimhe" which means the 'Oakwood of the Sand', which possibly derives either from the sandbanks which form along the rivers running through it or from the large quarry on its northwest boundary.
Its chief geographical features are the Shannon-Erne Waterway which flows north along its eastern boundary, the Crooked River (Ireland), another small stream falling from Slieve Rushen which exits into the canal beside Ballyconnell Bridge and a central drumlin hill of blue sandy clay which rises over 200 feet above sea level.
[6] In the fifth century AD, the townland formed part of the lands owned by the Masraige clan.
From medieval times until 1606, the townland formed part of the lands owned by the McGovern (name) clan.
An Inquisition held in Cavan Town on 20 September 1630 stated that Walter Talbot's lands included one poll in Derrogeny.
[10] James Talbot married Helen Calvert, the daughter of George Calvert, 1st Baron Baltimore of Maryland, USA, in 1635 and had a son Colonel George Talbot who owned an estate in Cecil County, Maryland which he named Ballyconnell in honour of his native town in Cavan.
Meredith Gwyllym, was vicar of the parishes of Glenavy, Camlin, Tullyrusk, Ballinderry & Magheragall from 1622 until sometime after 1634.
After the restoration of King Charles II to the throne in 1660, James Talbot tried to have the Ballyconnell estate restored to him but a final grant was made to Thomas Gwyllym in August 1666,[13] which included 63 acres & 2 roods in Derrogenny alias Derrygenny.
A deed dated 2 May 1724 by the aforesaid Meredith Gwyllym includes the townland as Derrogeny alias Derrygenny.
[14] The Gwyllym estate was sold for £8,000 in 1724 to Colonel Alexander Montgomery (1686–1729) of Convoy House, County Donegal, M.P.
A lease dated 14 May 1728 by the aforesaid Alexander Montgomery included Derrygowny alias Derrygannan.
In 1856 they sold the estate to take advantage of its increased value owing to the opening of the Woodford Canal through the town in the same year.
The estate, including Derryginny, was split up among different purchasers and maps & details of previous leases of the sold parts are still available.
[17] The Tithe Applotment Books for 1827 list the following tithepayers in the townland- Moore, Sturdy, Netterfield, Flood, Gwynne, Hannon, Cochrane.
[18] The Ordnance Survey Name Books for 1836 give the following description of the townland- Doire gainimhe, 'oak wood of the sand'.
[26] In the 1901 census of Ireland, there are six families listed in the townland, apart from those on the Derryginny side of Church Street.