TAMLAGHT O’CRILLY CIVIL PARISH
| County: | Londonderry |
| Barony: | Part Coleraine and part Loughinsholin |
| Diocese: | Derry |
| Poor Law Union: | Ballymoney and Magherafelt |
| Probate District: | Londonderry |
| Area: | 16,835 acres |
| Population in 1831: | 10,070 |
| Topography: | Situated in the Bann Valley this parish, which lies three miles northwest of the town of Portglenone, is bounded by the mountains of north Derry. |
| Villages: | Tamlaght, Glenone and Innisrush |
| Landowners in 1837: | The Mercers’ Company, Vintners’ Company and the See of Derry. |
| RECORD SOURCES | |
|---|---|
| Tithe: | 1833 |
| Griffith’s Valuation: | 1859 |
| Census: | 1663 (Hearth Rolls), 1740 (Protestant Householders), 1796 (Flax Lists), 1831 and 1901. |
| CHURCH REGISTERS | |
| Church of Ireland: | Tamlaght O’Crilly Upper – Pre-1870 none Tamlaght O’Crilly Lower – Pre-1870 none Tamlaght O’Crilly Lower and Upper parishes are now a united parish. |
| Presbyterian: | Boveedy – Baptisms from 1841; marriages from 1842 and burials 1849-1863. United with 2nd Kilrea in 1923. Churchtown – Baptisms from 1840 and marriages from 1839. |
| Roman Catholic: | Greenlough – Baptisms from 1845 and marriages from 1846. Greenlough was originally part of Kilrea Parish. |
| Reformed Presbyterian: | Drimbolg |
| GRAVEYARDS AND TOWNLANDS WHERE FOUND IN 1859: | |
| Church of Ireland: | Drumnacanon and Tyanee |
| Presbyterian: | Bovedy and Drumard |
| Roman Catholic: | Drumagarner and Inishrush |
| TOP TEN SURNAMES IN 1859 (in descending order): | |
| 1 Mulholland; 2 Kane; 3 McCahy; 4 Henry; 5 McErlane; 6 Mihill; 7 O’Neill; 8= Cassidy and Dimond; 10 Mullen | |