| First Name (With Contractions) | Mary |
| First Name (Without Contractions) | Mary |
| Middle or Other Names | Ann |
| Surname | Byrns |
| Married Surname | McDermott |
| Spouse's Occupation (As Documented) | Gardener |
| Spouse's Occupation (Standardised) | Gardener |
| Gender | Female |
| Abode | Liverpool |
| Year | 1823 |
| Parish | St John, Liverpool, Lancashire |
| Date Of Marriage | 1 Sep 1823 |
| Status | Widow |
| Witnesses | Henry Smyth; Elizabeth Smyth, (X) |
| Marriage Type | Banns |
| Marrying Minister | T. Kidd Officiating Minister |
| Register | Marriages 1820 - 1827, Page 94, Entry 281 |
| Source | LDS Film 1656197 |
| Witnessed By | Henry Smyth |
| Witnessed By | Elizabeth Smyth |
| Married To | Patrick McDermott |