| Bedfordshire | 0 |
| Buckinghamshire | 0 |
| Berkshire | 0 |
| Cambridgeshire | 0 |
| Channel Islands | 0 |
| Cheshire | 0 |
| Cornwall | 0 |
| Cumberland | 0 |
| Derbyshire | 0 |
| Devon | 0 |
| Dorset | 0 |
| Durham | 2 |
| Essex | 0 |
| Gloucestershire | 0 |
| Hampshire | 0 |
| Herefordshire | 0 |
| Hertfordshire | 0 |
| Huntingdonshire | 0 |
| Isle of Man | 0 |
| Kent | 0 |
| Lancashire | 17 |
| Leicestershire | 0 |
| Lincolnshire | 0 |
| London | 0 |
| 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 | 18 |
| Anglesey | 0 |
| Brecknockshire | 0 |
| Cardiganshire | 0 |
| Carnarvonshire | 0 |
| Carmarthenshire | 0 |
| Denbighshire | 0 |
| Flintshire | 0 |
| Glamorgan | 1 |
| Merionethshire | 0 |
| Montgomeryshire | 0 |
| Monmouthshire | 0 |
| Pembrokeshire | 0 |
| Radnorshire | 0 |
| Profession | Census Frequency |
|---|---|
| School | 6 |
| Weaver | 3 |
| Iron Moulder | 2 |
| Peddler | 1 |
| Basmike Maker | 1 |
| Black Smith Apprentice | 1 |
| Cotton Weaver | 1 |
| Dressmaber Appsentice | 1 |
| Housewife | 1 |
| Knocker Up | 1 |
| Miner Hewer | 1 |
| Porter (house) | 1 |
| Apprentice Blacksmith | 1 |
| Electric Car Driver | 1 |
| House Driver (corporal) | 1 |
| House Wife | 1 |
| Labourer | 1 |
| Vest Machenist | 1 |
| Retired Ships Plate Rivetter | 1 |
| Ships Plater Rivetter | 1 |
| Name | Census Frequency |
|---|---|
| Mary Mallay | 20 |
| John Mallay | 18 |
| Elizabeth Mallay | 12 |
| James Mallay | 10 |
| Martin Mallay | 8 |
| Thomas Mallay | 7 |
| William Mallay | 7 |
| Margaret Mallay | 6 |
| Catherine Mallay | 5 |
| Charles Mallay | 5 |
| Joseph Mallay | 5 |
| Patrick Mallay | 5 |
| Ann Mallay | 4 |
| Arthur Mallay | 3 |
| Francis Mallay | 3 |
| George Mallay | 3 |
| Matthew Mallay | 3 |
| Edward Mallay | 2 |
| Emma Mallay | 2 |
| Jane Mallay | 2 |
| Maria Mallay | 2 |
| Marian Mallay | 2 |
| May Mallay | 2 |
| Agnes Mallay | 1 |
| Alice Mallay | 1 |
| Rank | Surname | Match | Census Frequency |
|---|---|---|---|
| 1 | Molloy | 67% | 8,148 |
| 2 | Malley | 83% | 7,505 |
| 3 | Mulley | 67% | 5,197 |
| 4 | Malloy | 83% | 1,982 |
| 5 | Molley | 67% | 1,376 |
| 6 | Omalley | 71% | 1,214 |
| 7 | Mulloy | 67% | 1,141 |
| 8 | Melloy | 67% | 773 |
| 9 | Mally | 83% | 717 |
| 10 | Milley | 67% | 622 |
| 11 | Melley | 67% | 523 |
| 12 | Mully | 67% | 395 |
| 13 | Melly | 67% | 356 |
| 14 | Molly | 67% | 310 |
| 15 | Mullay | 83% | 219 |
| 16 | Milly | 67% | 199 |
| 17 | Mallay | 100% | 168 |
| 18 | Mollay | 83% | 159 |
| 19 | Milloy | 67% | 147 |
| 20 | Omally | 67% | 101 |
The surname Mallay is the 17th most popular variant of Molloy.