One might be excused for assuming that the surname Sangwin must have a Cornish language derivation – gwin meaning white. However, its past geography quickly dispels such a notion. John Sangwin was found at Launcells, on the border with Devon, in 1525. The surname was recorded as early as the 1270s at Whimple in east Devon, where it was previously used as a first name. Presumably this was a nickname from the Old French/Middle English word sanguine, meaning an optimistic or cheery sort of person. If so, optimism seems to have been confined to the very margins of Cornwall. The surname flourished from the 1500s to the 1700s in just two districts, the far north east and an area to the south of Launceston. In 1861 half of the Sangwins were still living in the Stratton district.
Captain Sampson Shakerley was buried at St Just in Penwith in 1681. Before this his surname was unknown in Cornwall. The captain – it’s not clear whether he was a naval, military or a mining captain – must have brought his family with him, as Mary Shakerley was married at St Just in 1686 and the name then made a regular appearance in the St Just parish registers. It remained confined there into the 1800s. It appears that the Shakerleys arrived in St Just in the 1600s and then stayed put for over a century before tentatively venturing into the less civilised parts of Cornwall. There is a place called Shakerley in Lancashire, near Leigh. Did the Cornish Shakerleys come from there? Any information would be very welcome.
In contrast, some surnames showed very little propensity to migrate. Shearm is one. The meaning of this name is unclear – is it an occupational name with a link to shear, as in shearing sheep? But its geography is very clear. There were several Schermes in 1525, all living in the far north east of Cornwall. Where they stayed. All but one Sherme or Shearm family was still there in 1641 and even in 1861 three of the five Shearm families were found in the parishes of Stratton, Poughill and Kilkhampton.