| Partner: | Henry COSNAHAN ( - ) | |
| Partner: | (unknown) | |
| Children: | William COSNAHAN (1838-1894) | |
| Name: | Henry COSNAHAN | |
| Sex: | Male | |
| Father: | - | |
| Mother: | - | |
| Name: | William COSNAHAN | |
| Sex: | Male | |
| Spouse: | Susan TUSON (1838-1900) | |
| Birth | 1838 | Isle of Man |
| Occupation | Police Officer | |
| Census | 1871 (age 32-33) | Liverpool, Lancashire |
| St mary Terrace Living with wife Susan and Children Jessie & William James |
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| Census | 1881 (age 42-43) | West Derby, Lancashire |
| 39 Sherdley Terrace Living with wife Susan and children Jessie, William, Florence & Gertrude |
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| Census | 1891 (age 52-53) | Lezayre, Isle of Man |
| Bowring Road Living with wife Susan and daughter Gertrude |
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| Death | Jan 1894 (age 55-56) | Lezayre, Isle of Man |