| Census: | 1851 |
| County: | Dunbartonshire (DNB) |
| District: | Row |
| Civil Parish: | Row |
| Ecclesiastical Parish: | Helensburgh |
| Piece: | 503 |
| Enumeration District: | 3 |
| Folio: | 0 |
| Page: | 9 |
| Schedule: | 31 |
| House Number: | |
| House or Street Name: | Colquhoun St, Helsnburgh |
| Surname | Forenames | Relationship | Marital Status | Sex | Age | Occupation | Birth County | Birth Place | Disability | Notes |
| BUCHANAN | James | Head | M | M | 47 | Wright Master Emp 10 Men | Renfrewshire | Inverkip | ||
| BUCHANAN | Cathrine | Wife | M | F | 49 | Dunbartonshire | Helensburgh | |||
| BUCHANAN | Mary | Dau | U | F | 16 | Dressmaker | Dunbartonshire | Helensburgh | ||
| BUCHANAN | William | Son | U | M | 15 | Writer Apprentice | Dunbartonshire | Helensburgh | ||
| BUCHANAN | Jane | Dau | - | F | 12 | Scholar | Renfrewshire | Greenock | ||
| BUCHANAN | James | Son | - | M | 10 | Scholar | Renfrewshire | Greenock | ||
| BUCHANAN | Cathrine | Dau | - | F | 6 | Scholar | Renfrewshire | Greenock |