Prior to 1858 the Established Church was responsible for the probating of wills. In 1860 each diocese forwarded all original wills to the Public Record Office in Dublin where they were destroyed in the firing of the PRO and Four Courts in 1922. Fortunately the indexes have survived and are genealogically valuable in placing families in a parish and county at a specified time.
| Surname | Firstname | Townland | Year |
| ANDERSON | William | Garvagh | 1772 |
| BELL | John | Gortfadd | 1779 |
| BLACK | Samuel | Shanelongford | *1795 |
| BRITTON | John | Medican | 1834 |
| BROWN | Euphan | Garvagh | 1748 |
| BUCHANAN | William | Garvagh | 1802 |
| BURNSIDE | William | Tamnymore | 1837 |
| CAIN | John | Cuoliescrahan (Coolcoscreaghan) | 1777 |
| CALDERWOOD | Charles | Garvagh | 1805 |
| CASKEY | David | Liscall | 1809 |
| CASKEY | Joseph | Liscall | 1777 |
| CASSIDY | Neal | Ballymena | 1830 |
| CARRUTHERS | William | Garvagh | 1805 |
| CHURCH | John | Moletragh | 1756 |
| CLINTON | George | Garvagh (listed as parish of Aghadoey) | 1826 |
| CLINTON | John | Garvagh (listed as parish of Aghadoey) | 1765 |
| CLINTON | John | Garvagh (listed as parish of Aghadoey) | 1770 |
| CONWAY | Samuel | Cah | *1776 |
| CONYNGHAM | Matthew | Errigal | 1788 |
| DORRANCE | John | Garvagh | 1839 |
| DOUGHERTY | Henry | Clare Hill | 1826 |
| KEILLY | Michael | Gortnamoyagh | 1854 |
| KNOX | William | Chraghandoly (Crockindollagh) | 1841 |
| LINDSAY | Robert | Garvagh | 1764 |
| McMULLAN | John (farmer) | Ineshileen (Inshaleen) | 1744 |
| McNICKLE | Lawrence | Lisnascreoge | 1800 |
| MAHARG | Archibald | Lissachrun | 1763 |
| MAIN | Thomas (Rev.) | Ballyagan | 1827 |
| MILLEN | John | Garvagh | 1782 |
| MILLER | Robert | Gortfadd | 1664 |
| MOON | Thomas | Cah | 1835 |
| MORRISON | William | Errigal | 1814 |
| MULLAN | Grace | ………. | 1782 |
| O'CAIN | Manus | Cuolcosrahan | 1767 |
| O'KANE | John | Garvagh | 1853 |
| O'KANE | Bryan | Gleenkeen | 1802 |
| O'KANE | Patrick (farmer) | Brockagh | 1771 |
| O'MULLAN | Arthur (farmer) | Brockagh | 1783 |
| O'MULLAN | Mary | Brockagh | 1753 |
| O'MULLAN | Patrick | Errigall | 1770 |
| ROBERTSON | Robert (merchant) | Garvagh | 1834 |
| ROBINSON | Jane (widow) | Garvagh | 1849 |
| RODGERS | John (merchant) | Garvagh | 1731 |
| SLOAN | Robert | Garvagh | 1761 |
| SMITH | Alexander | Garvagh | 1799 |
| STEVENSON | Josiah | The Hermitage, Garvagh | 1854 |
| STEVENSON | Mary | ……… | 1833 |
| WALLACE | John | Garvagh | 1830 |
| WATT | John | Inshaleen | 1843 |
| WELLS | Thomas | Ballintemple | 1847 |
| WOODBURN | James | ……… | 1776 |
| WOODBURN | Matthew | Garvagh | 1807 |
| WOODSIDE | George William | Garvagh | 1770 |
| WOODSIDE | ………. | 1761 |