| Census: | 1861 |
| County: | Lancashire (LAN) |
| District: | Harwood |
| Civil Parish: | Blackburn |
| Ecclesiastical Parish: | St Lawrence |
| Piece: | 3091 |
| Enumeration District: | 6 |
| Folio: | 37 |
| Page: | 32 |
| Schedule: | 169 |
| House Number: | 6 |
| House or Street Name: | Clayton Street |
| Surname | Forenames | Relationship | Marital Status | Sex | Age | Occupation | Birth County | Birth Place | Disability | Notes |
| MERCER | Robert | Head | M | M | 43 | Engine Feeder | Lancashire | Great Harwood | ||
| MERCER | Sarah | Wife | M | F | 48 | Lancashire | Great Harwood | |||
| MERCER | Alice | Dau | - | F | 21 | Tape Warper | Lancashire | Great Harwood | ||
| MERCER | Elizabeth | Dau | - | F | 18 | Power Loom Cotton Weaver | Lancashire | Great Harwood | ||
| MERCER | Richard | Son | - | M | 13 | Power Loom Cotton Weaver | Lancashire | Great Harwood | ||
| MERCER | Grace | Dau | - | F | 16 | Power Loom Cotton Weaver | Lancashire | Great Harwood | ||
| MERCER | Sarah Ann | Dau | - | F | 10 | Scholar | Lancashire | Great Harwood | ||
| MERCER | Rose | Dau | - | F | 8 | Scholar | Lancashire | Great Harwood | ||
| MERCER | Robert | Son | - | M | 6 | Scholar | Lancashire | Great Harwood |