The baptismal name Tom
It was possible for Fielding to do this thanks to the surprising fact that a tiny number of English names had dominated the baptismal name-stock for the previous 400–500 years and would do so for another century or more. In the Poll Tax Returns of 1377–1381, for example, Thomas was the third most used male forename, borne by about 10% of all males, behind John (33.4%) and William (21.3%). It remained either in that position or in second place well into the eighteenth century. Its main pet form since the thirteenth century has been Tom, which was then so common that it was already in use a generic term for the average male, along with Jack, Dick (for Richard) and Harry (an everyday pronunciation of Henry). By the eighteenth century, the phrase ‘Tom, Dick and Harry’ was the most familiar way of referring to ordinary men as a class of people.
The family name Jones and its relations
Tom’s surname Jones is similarly so common that it has long been used as a generic, in phrases such as ‘keeping up with the Joneses’. In the 1881 census Jones, with 338,373 bearers, was second in frequency only to Smith (with 421,703 bearers). Indeed, patronymics (surnames based on the name of a father) form the second most common category of English surnames. Jones tops the list of patronymic surnames partly because of the overwhelming popularity in late medieval England of the baptismal name John (often spelled Johan and Jon in the records). It naturally produced a common surname, which in medieval England and Scotland took three forms, John, Jones and Johnson. Jones employs the Middle English genitival (possessive) -s and usually means ‘John’s (son)’, occasionally perhaps ‘John’s (servant)’. The numbers of people named Jones were increased in early modern England by the frequent addition of a meaningless -s to the hereditary surname John. The most explicit form of this patronymic was Johnson or Jonson, which between them had 100,425 bearers in the 1881 census, ranking eleventh in frequency. If we add to this the surname John (10,795) and surnames from pet forms of John, such as Jack (6,347), Jacks (677), Jackson (83,525), Jenkin (2,361), Jenkins (35,170) and Jenkinson (5,237), the total of 582,910 bearers in 1881 easily outstrips that for Smith.
The great variation in numbers of bearers, even for different surnames derived from the same, exceptionally common baptismal name, is typical of English family names. Low numbers are in fact the norm. Of the 50,000 or so different family names in Britain in 1881 with at least 20 or more bearers, over 90% had fewer than 1,000 bearers. Names such as Johnson and Jones, running into more than a hundred thousand bearers, are rare. The three different name-forms – those with no suffix, those with the suffix -s and those with the suffix -son – also have distinct regional distributions. Jack is mainly found in Scotland, John in south Wales and Jenkin in Cornwall and Glamorgan. Jacks is mostly concentrated in Shropshire and Jones and Jenkins, though widespread in England, are most heavily evident in south-west England, the west midlands and Wales. Johnson and Jenkinson, like most surnames in -son, are mainly found in northern England, the north midlands and Norfolk, although they do occur further south (especially in the London area) through family migration.