| Bedfordshire | 0 |
| Buckinghamshire | 0 |
| Berkshire | 0 |
| Cambridgeshire | 0 |
| Channel Islands | 0 |
| Cheshire | 0 |
| Cornwall | 51 |
| Cumberland | 0 |
| Derbyshire | 0 |
| Devon | 4 |
| 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 | 4 |
| Middlesex | 0 |
| Northumberland | 0 |
| Norfolk | 0 |
| Northamptonshire | 0 |
| Nottinghamshire | 0 |
| Oxfordshire | 0 |
| Rutland | 0 |
| Shropshire | 0 |
| Suffolk | 0 |
| Somerset | 0 |
| Surrey | 0 |
| Sussex | 0 |
| Staffordshire | 0 |
| Warwickshire | 0 |
| Westmorland | 0 |
| Wiltshire | 0 |
| Worcestershire | 0 |
| Yorkshire | 0 |
| Anglesey | 0 |
| Brecknockshire | 0 |
| Cardiganshire | 0 |
| Carnarvonshire | 0 |
| Carmarthenshire | 0 |
| Denbighshire | 0 |
| Flintshire | 0 |
| Glamorgan | 0 |
| Merionethshire | 0 |
| Montgomeryshire | 0 |
| Monmouthshire | 0 |
| Pembrokeshire | 0 |
| Radnorshire | 0 |
| Profession | Census Frequency |
|---|---|
| Scholar | 6 |
| Carpenter | 2 |
| Laundress | 2 |
| Ag Lab | 1 |
| Assayer | 1 |
| China Clay Labourer | 1 |
| China Stone Quarryman | 1 |
| Clay Lab | 1 |
| Clay Labourer | 1 |
| Clay Labourer's Wife | 1 |
| Farm Servant In Door | 1 |
| Farmer Of 150 Acres | 1 |
| Farmer Of 220 Acres Employing 12 Lab & 3 Boys | 1 |
| Farmer's Son | 1 |
| General Servant Domestic | 1 |
| Labourer's Wife | 1 |
| Land Agent Farming 160 Acres Employing 3 Men 2 Boy | 1 |
| Mason's Labourer | 1 |
| Miner | 1 |
| Quarryman's Wife | 1 |
| Seamstress | 1 |
| Servant | 1 |
| Shoemaker | 1 |
| Smith | 1 |
| Dress Maker | 1 |
| Name | Census Frequency |
|---|---|
| Mary Trethewy | 18 |
| William Trethewy | 16 |
| Jane Trethewy | 10 |
| John Trethewy | 9 |
| Samuel Trethewy | 8 |
| Eliza Trethewy | 7 |
| Thomas Trethewy | 7 |
| Ann Trethewy | 6 |
| Henry Trethewy | 6 |
| James Trethewy | 6 |
| Richard Trethewy | 6 |
| Annie Trethewy | 5 |
| Elizabeth Trethewy | 4 |
| Emma Trethewy | 4 |
| Grace Trethewy | 4 |
| Amy Trethewy | 3 |
| Charles Trethewy | 3 |
| Frederick Trethewy | 3 |
| George Trethewy | 3 |
| Maria Trethewy | 3 |
| Martha Trethewy | 3 |
| Frances Trethewy | 2 |
| Jabez Trethewy | 2 |
| Joseph Trethewy | 2 |
| Lilian Trethewy | 2 |