| | Surname | Forename | Year Born | Location | Census Year | | Mason | Rosamond | abt 1861 | Hellifield | 1881 |
| Mason | Rosamond | abt 1861 | Otterburn | 1861 |
| Mason | Rosamond | abt 1861 | Otterburn | 1871 |
| Mason | Rupert | abt 1856 | Bradford | 1881 |
| Mason | Sarah | abt 1863 | Skipton | 1871 |
| Mason | Stephen | abt 1796 | Askham Bryan | 1871 |
| Mason | Walter | abt 1870 | Otterburn | 1881 |
| Mason | Walter | abt 1870 | Otterburn | 1871 |
| Mason | Walton | abt 1870 | Walmersley and Shuttleworth | 1891 |
| Mason | William | abt 1784 | Kearby with Netherby | 1861 |
| Massey | Harriet | abt 1830 | Kirkby Malhamdale | 1841 |
| Massey | Margaret | abt 1811 | Pendlebury | 1871 |
| Maton | Jan | abt 1828 | Keighley | 1851 |
| Mattinson | James | abt 1843 | Dent | 1891 |
| Mattinson | James | abt 1843 | Dent | 1901 |
| Maudsley | Elizabeth | abt 1821 | Kirkby Malhamdale | 1841 |
| Maudsley | Mary | abt 1787 | Settle | 1851 |
| Maudsley | Mary | abt 1804 | Settle | 1861 |
| Maughan | Ellen | abt 1816 | Clitheroe | 1891 |
| Maughan | Thomas | abt 1819 | Clitheroe | 1891 |
| Maund | James | abt 1816 | Scosthrop | 1871 |
| Maund | Jane | abt 1855 | Scosthrop | 1871 |
| Maxfield | Margaret | abt 1829 | Halifax | 1901 |
| Maxfield | Margaret | abt 1839 | Northowram | 1891 |
| Maxfield | Margaret | abt 1839 | Northowram | 1891 |
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