| First Name (With Contractions) | Mary |
| First Name (Without Contractions) | Mary |
| Surname | Leech |
| Married Surname | Mercer |
| Spouse's Occupation (As Documented) | Carter |
| Spouse's Occupation (Standardised) | Carter |
| Gender | Female |
| Abode | Liverpool |
| Year | 1791 |
| Parish | St Nicholas, Liverpool, Lancashire |
| Date Of Marriage | 3 Jan 1791 |
| Status | Spinster |
| Witnesses | John Wright; Henry Wright |
| Marriage Type | Banns |
| Marrying Minister | Rt. Loxham |
| Register | Marriages 1788 - 1793, Page 88, Entry 3 |
| Source | LDS Film 93839 |
| Witnessed By | John Wright |
| Witnessed By | Henry Wright |
| Married To | Thomas Mercer |