| Census: | 1871 |
| County: | Caithness (CAI) |
| District: | Thurso |
| Civil Parish: | Thurso |
| Ecclesiastical Parish: | Thurso |
| Piece: | 41 |
| Enumeration District: | 9 |
| Folio: | 0 |
| Page: | 13 |
| Schedule: | 48 |
| House Number: | |
| House or Street Name: | Achnavast |
| Surname | Forenames | Relationship | Marital Status | Sex | Age | Occupation | Birth County | Birth Place | Disability | Notes |
| LAIDLAW | John | Head | M | M | 30 | Labourer | Dumfriesshire | Dursder | ||
| LAIDLAW | Catherine | Wife | M | F | 28 | - | Caithness | Latheron Dunbeath | ||
| LAIDLAW | Elizabeth | Daur | U | F | 4 | - | Caithness | Latheron Dunbeath | ||
| LAIDLAW | James | Son | U | M | 2 | - | Caithness | Achnavast | ||
| SUTHERLAND | Donald | Boardr | M | M | 36 | Shoemaker | Unknown | Dunbeath | ||
| MACKAY | Angus | Boardr | U | M | 29 | Labourer | Sutherland | Swardly |