The overall aim of this article is to show that pauper letters are a valuable, but as yet largely untapped resource for historical dialectological research. Offering a case study based on 31 poor-relief applications sent by 10 individuals to parishes in Dorset between 1742 and 1834, the article aims to identify regional variation, especially as associated with Dorset and/or the Southwest of England more generally, by comparing variant spellings and morphosyntactic usages contained in the letters with features listed in modern dialect surveys (mainly Wakelin 1986; Altendorf & Watt 2008; Wagner 2008), as well as in Dorset poet William Barnes’ Dissertation and the reconstruction of his idiolect by Burton (2013). It is possible to isolate 297 occurrences of 52 different phonological and morphosyntactic features in the pauper letters; 11 of these features are salient across the letter selection (i.e. represented by at least three paupers) and are suggestive of the provenance of the letters. The article also offers surprising findings such as the absence of the prototypically Southwestern fricative voicing, features unrecorded by modern synopses (e.g. unmarked possessive), and the presence of a feature (-ind for -ing) which had fallen out of common use in the fifteenth century.