| First Name (With Contractions) | William |
| First Name (Without Contractions) | William |
| Surname | Costain |
| Gender | Male |
| Abode | Liverpool |
| Year | 1799 |
| Parish | St Nicholas, Liverpool, Lancashire |
| Date Of Marriage | 25 Nov 1799 |
| Occupation (As Documented) | Shipwright |
| Occupation (Standardised) | Shipwright |
| Occupation (HISCO Code) | 95440 |
| Witnesses | Edward Coventry; Thos. Howard |
| Marriage Type | Licence |
| Marrying Minister | Thomas Kidd, Curate |
| Register | Marriages 1799 - 1801, Page 43, Entry 403 |
| Source | LDS Film 93839 |
| Witnessed By | Edward Coventry |
| Witnessed By | Thos. Howard |
| Married To | Mary Obin |