| Bedfordshire | 0 |
| Buckinghamshire | 9 |
| Berkshire | 0 |
| Cambridgeshire | 63 |
| Channel Islands | 3 |
| Cheshire | 0 |
| Cornwall | 5 |
| Cumberland | 0 |
| Derbyshire | 3 |
| Devon | 37 |
| Dorset | 9 |
| Durham | 1 |
| Essex | 16 |
| Gloucestershire | 37 |
| Hampshire | 47 |
| Herefordshire | 11 |
| Hertfordshire | 14 |
| Huntingdonshire (and Rutland) | 5 |
| Isle of Man | 0 |
| Kent | 8 |
| Lancashire | 27 |
| Leicestershire | 39 |
| Lincolnshire | 17 |
| London | 227 |
| Middlesex | 20 |
| Northumberland | 0 |
| Norfolk | 37 |
| Northamptonshire | 0 |
| Nottinghamshire | 0 |
| Oxfordshire | 28 |
| Rutland (and Huntingdonshire) | 5 |
| Shropshire | 1 |
| Suffolk | 62 |
| Somerset | 19 |
| Surrey | 7 |
| Sussex | 5 |
| Staffordshire | 19 |
| Warwickshire | 13 |
| Westmorland | 1 |
| Wiltshire | 27 |
| Worcestershire | 0 |
| Yorkshire | 17 |
| Anglesey | 0 |
| Brecknockshire | 4 |
| Cardiganshire | 0 |
| Carnarvonshire | 0 |
| Carmarthenshire | 0 |
| Denbighshire | 0 |
| Flintshire | 0 |
| Glamorgan | 0 |
| Merionethshire | 0 |
| Montgomeryshire | 0 |
| Monmouthshire | 2 |
| Pembrokeshire | 0 |
| Radnorshire | 0 |
| Profession | Census Frequency |
|---|---|
| Agricultural Labourer | 64 |
| Female Servant | 38 |
| Labourer | 23 |
| Independent | 21 |
| Male Servant | 20 |
| Ag Labourer | 9 |
| Tailor | 7 |
| Dress Maker | 6 |
| Blacksmith | 5 |
| Gardener | 5 |
| Shoe Binder | 5 |
| Farmer | 4 |
| Laundress | 4 |
| Sawyer | 3 |
| Shoe Maker | 3 |
| Stay Maker | 3 |
| Straw Platt | 3 |
| Servant | 3 |
| Woolen Weaver | 3 |
| Washer Woman | 2 |
| Binder | 2 |
| Builder | 2 |
| Carpenter | 2 |
| Fs | 2 |
| Green Grocer | 2 |
| Name | Census Frequency |
|---|---|
| Mary Leader | 712 |
| William Leader | 708 |
| John Leader | 558 |
| Elizabeth Leader | 457 |
| George Leader | 411 |
| Sarah Leader | 404 |
| Thomas Leader | 364 |
| James Leader | 323 |
| Charles Leader | 266 |
| Henry Leader | 235 |
| Ann Leader | 230 |
| Robert Leader | 216 |
| Jane Leader | 205 |
| Emma Leader | 179 |
| Eliza Leader | 162 |
| Frederick Leader | 141 |
| Alice Leader | 140 |
| Annie Leader | 137 |
| Alfred Leader | 135 |
| Edward Leader | 125 |
| Ellen Leader | 120 |
| Emily Leader | 114 |
| Martha Leader | 114 |
| Albert Leader | 101 |
| Louisa Leader | 93 |
| Rank | Surname | Match | Census Frequency |
|---|---|---|---|
| 1 | Alder | 50% | 16,494 |
| 2 | Loader | 83% | 12,013 |
| 3 | Leader | 100% | 10,986 |
| 4 | Elder | 67% | 6,671 |
| 5 | Leeder | 83% | 4,837 |
| 6 | Loder | 67% | 4,463 |
| 7 | Older | 50% | 2,582 |
| 8 | Lauder | 67% | 2,225 |
| 9 | Ludor | 50% | 358 |
| 10 | Lader | 83% | 332 |
| 11 | Louder | 67% | 294 |
| 12 | Laider | 67% | 206 |
| 13 | Leder | 83% | 201 |
| 14 | Leider | 83% | 171 |
| 15 | Luder | 67% | 165 |
The surname Leader is the 3rd most popular variant of Alder.