| Census: | 1841 |
| County: | Cornwall (CON) |
| District: | Penwith |
| Civil Parish: | Zennor |
| Piece: | 144 |
| Enumeration District: | 14 |
| Folio: | 5 |
| Page: | 3 |
| House Number: | |
| House or Street Name: | Tregarthen |
| Surname | Forenames | Sex | Age | Occupation | Birth County | Notes |
| ELLIS | Thomas | M | 35 | Miner | Cornwall | |
| ELLIS | Grace | F | 35 | Cornwall | ||
| ELLIS | John | M | 10 | Cornwall | ||
| ELLIS | Thomas | M | 7 | Cornwall | ||
| ELLIS | Robert | M | 5 | Cornwall | ||
| ELLIS | William | M | 22m | Cornwall |