This is an English surname. It is clearly locational, and appears to be from the village of Eversfield, in the county of Devonshire. The place name can have two meanings both Olde English pre 7th century. The first is from the word "efer" meaning a boar, and hence the boars field, or it may be tribal and describe the "Eofor people", who were widely recorded in the early charters. However as their name also means "boar" it is difficult to distinguish between the tribe and the animal. Locational surnames are usually "from" names. That is to say names given for ease of identification to a stranger, one who had come from his or sometimes her, original homestead to somewhere else. This could be the next village, or some far away city. In this case the surname is much more widely recorded two hundred miles away in London than in its home county. Early examples of recordings taken taken from surviving church registers include Mary Eversfield, who married Thomas Beckford at Westminster Abbey, in the city of London, on July 9th 1678, whilst on home territory we have the rare recording of Eleanor Eversfield, who married Richard Shaw at St Martins, Exeter, on May 24th 1782.