Dergenagh
Is ainm dó Dearganach
Townland in Aghnahoe electoral division, Killeeshil civil parish, Lower Dungannon barony, County Tyrone, Ireland.
Catholic parish: Killeeshil (Armagh), Aghaloo (Armagh)
1848–1864
Griffith's Valuation
1901
National Census
1911
National Census
1926
National Census