The 1851 census returns were mostly destroyed in a fire at the Public Records Office Dublin during the Irish Civil War on 30 June 1922. Only fragments of the Ireland 1851 census survive for Antrim, Armagh, Cavan, Clare, Donegal, Down, Diblin, Fermanagh, Kerry, Kildare, Leitrim, Limerick, Londonderry, Longford, Mayo, Meathg, Monaghan, Laois, Roscommon, Sligo, Tipperary, Tyrone, Waterford, Wexford and Wicklow.
| Surname | Given Name | Lifespan | Date | Place | Memo |
|---|---|---|---|---|---|
| Carey | Mary | B. Bef 1831, d. 16 Oct 1895 | 30 Mar 1851 | Rush Hall, Offerlane, Laois, IrelandG | (Entry in census inferred from pension application form made in 1909) |
| Doolan | Ellen | B. 1775, d. DECEASED | 30 Mar 1851 | Larne, Upper Glenarm, Antrim, Northern Ireland | Age: 76; Marital Status: Widowed; Relation to Head: Mother-in-Law |
| Doolan | Rose | B. 1821, d. DECEASED | 30 Mar 1851 | Larne, Upper Glenarm, Antrim, Northern Ireland | Age: 30; Marital Status: Married; Relation to Head: Wife |
| Dowling | B. 1839, d. Aft 1 Jan 1909 | 30 Mar 1851 | Kilmakee, Belfast, Antrim, Northern Ireland | (Entry in census inferred from pension application form made in 1909) | |
| Dowling | Archibald | B. 22 Mar 1851, d. DECEASED | 30 Mar 1851 | Carrickfergus, Carrickfergus, Antrim, Northern Ireland | (Entry in census inferred from pension application form made in 1909) |
| Dowling | Catherine | D. DECEASED | 30 Mar 1851 | Carrickfergus, Carrickfergus, Antrim, Northern Ireland | (Entry in census inferred from pension application form made in 1909) |
| Dowling | Catherine | B. Bef 5 Jan 1850, d. Aft 25 Sep 1917 | 30 Mar 1851 | Rush Hall, Offerlane, Laois, IrelandG | (Entry in census inferred from pension application form made in 1909) |
| Dowling | Daniel | B. Bef 1874, d. Bef 31 Mar 1901 | 30 Mar 1851 | Carrickfergus, Carrickfergus, Antrim, Northern Ireland | (Entry in census inferred from pension application form made in 1909) |
| Dowling | James | D. DECEASED | 30 Mar 1851 | Kilmakee, Belfast, Antrim, Northern Ireland | (Entry in census inferred from pension application form made in 1915) |
| Dowling | James Alexander Patrick | B. 17 Mar 1847, d. Aft 8 Mar 1917 | 30 Mar 1851 | Carrickfergus, Carrickfergus, Antrim, Northern Ireland | (Entry in census inferred from pension application form made in 1909) |
| Dowling | Jane | B. Bef 1845, d. 4 Mar 1915 | 30 Mar 1851 | Kilmakee, Belfast, Antrim, Northern Ireland | (Entry in census inferred from pension application form made in 1915) |
| Dowling | Jeremiah | D. Bef 12 Aug 1890 | 30 Mar 1851 | Carrickfergus, Carrickfergus, Antrim, Northern Ireland | (Entry in census inferred from pension application form made in 1909) |
| Dowling | John | D. DECEASED | 30 Mar 1851 | Carrickfergus, Carrickfergus, Antrim, Northern Ireland | (Entry in census inferred from pension application form made in 1909) |
| Dowling | Margaret | D. DECEASED | 30 Mar 1851 | Kilmakee, Belfast, Antrim, Northern Ireland | (Entry in census inferred from pension application form made in 1915) |
| Dowling | Michael | B. Bef 1831, d. Bef 19 Nov 1889 | 30 Mar 1851 | Rush Hall, Offerlane, Laois, IrelandG | (Entry in census inferred from pension application form made in 1909) |
| Dowling | Samuel | D. DECEASED | 30 Mar 1851 | Carrickfergus, Carrickfergus, Antrim, Northern Ireland | (Entry in census inferred from pension application form made in 1909) |
| McIntosh | Mary Ellen | D. DECEASED | 30 Mar 1851 | Carrickfergus, Carrickfergus, Antrim, Northern Ireland | (Entry in census inferred from pension application form made in 1909) |
| O'Hara | Charles | B. 1815, d. DECEASED | 30 Mar 1851 | Larne, Upper Glenarm, Antrim, Northern Ireland | Age: 36; Marital Status: Married; Relation to Head: Head |
| O'Hara | Margret | B. 1841, d. DECEASED | 30 Mar 1851 | Larne, Upper Glenarm, Antrim, Northern Ireland | Age: 10; Marital Status: Unmarried; Relation to Head: Daughter |
| O'Hara | Martha | B. Bef 22 Sep 1850, d. DECEASED | 30 Mar 1851 | Larne, Upper Glenarm, Antrim, Northern Ireland | Age: 6 months; Marital Status: Unmarried; Relation to Head: Daughter |