| Bedfordshire | 0 |
| Buckinghamshire | 0 |
| Berkshire | 0 |
| Cambridgeshire | 0 |
| Channel Islands | 1 |
| Cheshire | 0 |
| Cornwall | 113 |
| Cumberland | 0 |
| Derbyshire | 0 |
| Devon | 14 |
| Dorset | 0 |
| Durham | 0 |
| Essex | 0 |
| Gloucestershire | 0 |
| Hampshire | 0 |
| Herefordshire | 0 |
| Hertfordshire | 0 |
| Huntingdonshire | 0 |
| Isle of Man | 0 |
| Kent | 0 |
| Lancashire | 0 |
| Leicestershire | 0 |
| Lincolnshire | 0 |
| London | 0 |
| Middlesex | 0 |
| Northumberland | 0 |
| Norfolk | 0 |
| Northamptonshire | 0 |
| Nottinghamshire | 0 |
| Oxfordshire | 0 |
| Rutland | 0 |
| Shropshire | 1 |
| Suffolk | 1 |
| Somerset | 2 |
| Surrey | 0 |
| Sussex | 0 |
| Staffordshire | 0 |
| Warwickshire | 0 |
| Westmorland | 0 |
| Wiltshire | 0 |
| Worcestershire | 0 |
| Yorkshire | 0 |
| Anglesey | 0 |
| Brecknockshire | 0 |
| Cardiganshire | 1 |
| Carnarvonshire | 0 |
| Carmarthenshire | 0 |
| Denbighshire | 0 |
| Flintshire | 0 |
| Glamorgan | 0 |
| Merionethshire | 0 |
| Montgomeryshire | 0 |
| Monmouthshire | 0 |
| Pembrokeshire | 0 |
| Radnorshire | 0 |
| Profession | Census Frequency |
|---|---|
| Copper Miner | 14 |
| Agricultural Labourer | 11 |
| Miner | 4 |
| Female Servant | 3 |
| Farmer | 2 |
| Independent | 2 |
| Labourer | 2 |
| Male Servant | 2 |
| Tin Miner | 2 |
| Lead Miner | 1 |
| Miner Silver Lead | 1 |
| House Keeper | 1 |
| Husband Man | 1 |
| Pauper | 1 |
| Pensioner Army | 1 |
| Pupil | 1 |
| Shoe Maker | 1 |
| Smith | 1 |
| Waterman | 1 |
| Bargeman | 1 |
| Shop Man | 1 |
| Tailoress | 1 |
| Name | Census Frequency |
|---|---|
| Mary Trevethan | 153 |
| John Trevethan | 116 |
| William Trevethan | 109 |
| Elizabeth Trevethan | 104 |
| Thomas Trevethan | 81 |
| Richard Trevethan | 46 |
| James Trevethan | 43 |
| Jane Trevethan | 43 |
| Sarah Trevethan | 25 |
| Michael Trevethan | 24 |
| Ann Trevethan | 22 |
| Annie Trevethan | 16 |
| Henry Trevethan | 16 |
| Sampson Trevethan | 16 |
| Edward Trevethan | 15 |
| Joseph Trevethan | 15 |
| Samuel Trevethan | 15 |
| Frederick Trevethan | 14 |
| Grace Trevethan | 14 |
| Eliza Trevethan | 13 |
| Ellen Trevethan | 13 |
| Catherine Trevethan | 12 |
| Charles Trevethan | 12 |
| Emma Trevethan | 12 |
| Emily Trevethan | 11 |