GlencullGlencull is a townland in County Tyrone, Northern Ireland. It is situated in the historic barony of Dungannon Lower and the civil parish of Killeeshil and covers an area of. It is the only exclave of Killeeshil.EducationThe townland contains St Malachys Glencull Primary School. The school was opened in 1833 and pupils included poets John Montague and Patrick Farrell.