Landed Estates
NUI Galway

O'Brien (Carrigallen)

Acheson O'Brien of Drumsilla was High Sheriff of Leitrim in 1810. In 1852 and 1853 over 2000 acres of the estate of Acheson O'Brien, leased from the Bishop of Kilmore, were offered for sale in the Encumbered Estates Court. The estate of William A. O'Brien of Drumsilla amounted to over 1400 acres in county Leitrim in the 1870s. In 1906 the representatives of William A. O'Brien were the owners of over 100 acres of untenanted land at Carrigallen as well as the mansion house at Drumsillagh.

Associated Families


Name Townland Civil Parish PLU DED Barony County Map Ref
Cloghlough Cloghlough Carrigallen Mohill Carrigallen East Carrigallen Leitrim OSI Ref: H251033
OS Sheet: 30
Discovery map: 33
Drumsillagh Drumsillagh Carrigallen Mohill Carrigallen East 57 Carrigallen Leitrim OSI Ref: H250044
OS Sheet: 30
Discovery map: 34