| | Surname | Forename | Year Born | Location | Census Year | | Cooke | Margaret | abt 1829 | Settle | 1851 |
| Cookson | Sarah | abt 1825 | East and West Morton | 1901 |
| Cookson | Sarah | abt 1825 | Morton | 1891 |
| Cookson | Sarah | abt 1825 | Morton In Keighley | 1881 |
| Coop | Grace | abt 1824 | Bradford | 1851 |
| Coop | Isabella | abt 1822 | Bradford | 1851 |
| Coop | Thomas | abt 1836 | Bradford | 1871 |
| Coope | Joshua | abt 1832 | Bolton | 1891 |
| Coope | Joshua | abt 1832 | Bradford | 1881 |
| Coope | Joshua | abt 1832 | Bradford | 1861 |
| Cooper | Augustin | abt 1822 | Holdenhurst | 1891 |
| Cooper | Benjamin | abt 1785 | Raunds | 1851 |
| Cooper | Charles | abt 1886 | Coniston Cold | 1891 |
| Cooper | Charles | abt 1886 | Coniston Cold | 1901 |
| Cooper | John | abt 1808 | Bradford | 1851 |
| Cooper | Lilian | abt 1887 | Coniston Cold | 1891 |
| Cooper | Lilian | abt 1887 | Coniston Cold | 1901 |
| Cooper | Richard | abt 1882 | Gisburn | 1891 |
| Coopland | Hannah | abt 1831 | Sowerby | 1891 |
| Copley | Jane | abt 1808 | York St Mary Bishophill Senior | 1861 |
| Copley | Jane | abt 1843 | York St Mary Bishophill Senior | 1861 |
| Copley | John | abt 1840 | York St Mary Bishophill Senior | 1861 |
| Copley | William | abt 1838 | York St Mary Bishophill Junior | 1861 |
| Copson | Sarah | abt 1845 | Reedley Hollows | 1871 |
| Corlass | Thomas | abt 1807 | Barrowford Booth | 1881 |
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