Galwegian Gaelic
George Buchanan, himself a Gaelic speaker, writing in 1575, reported that Gaelic was still spoken in Galloway. In the middle of the century, 1563–1566, an anonymous English military investigator reported that the people of Carrick "for the most part specke erishe".
History of Scottish Gaelic
There is no evidence from place names of significant linguistic differences between, for example, Argyll and Galloway. Dialects on both sides of the Straits of Moyle (the North Channel) linking Scottish Gaelic with Irish are now extinct, though native speakers were still to be found on the Mull of Kintyre, Rathlin and in North East Ireland as late as the mid-20th century. Records of their speech show that Irish and Scottish Gaelic existed in a dialect chain with no clear language boundary.