Släkthistoria för Birtles
Birtles Vad efternamn betyder
from Birtles (in Prestbury Cheshire) Birchill Farm (in Hassop Derbys) or possibly Birchills (in Walsall Staffs). The place-names are from the plural of Old English *bircel ‘small birch’ with occasional confusion of the final syllable with Middle English hill hull ‘hill’ and hale ‘corner of land’ (etc.). Pronunciation of /ʧ/ in Birch- has been simplified to /t/ before the following /l/ whence modern Birtles but the -th- spellings in the medieval forms are probably misreadings of -ch-; the letters c and t are commonly indistinguishable in medieval court hand.post-medieval variant of Birtle with excrescent -s. perhaps a post-medieval variant of Birchall + excrescent -s and the sound change from /ʧ/ to /t/ noted in (1) above but Birchall itself could be a variant of Birtles in which case the following bearers belong at (1).
Källa: The Oxford Dictionary of Family Names in Britain and Ireland, 2016