Good evening.
I have a heck of a lot of Scottish ancestry, and that also encompasses my paternal line, which is traced back to Andrew Hutchison, who was born, c. 1789, in Leslie, Fife. The mystery however concerns this part of my family tree, and Andrew's son, my 3x great-grandfather, also called Andrew. Andrew the younger was born in 1814 in Edinburgh, his mother was Janet Swan, her own parents were also from across the water (Fifers). This is all from my research on Ancestry and this is where it gets interesting. It appears I have some distant English ancestry on further down the line on Janet Swan's side. Her paternal grandfather was James Swan, who was born, c. 1729, in Kennoway, Fife. James's father's side seems to have several family lines that originate south of the border. His 4x great-grandmother (and my 12th), Eupham Judith Bell was born in 1555 in Perth, but her parents, Edward Bell and Margaret Boyes, were both from Durham. On another line one of his family lines, his 3x great-grandmother Betty Collier is seemingly from England (or at least both of her parents are). Betty Collier was born in 1749, she married George Smith, who was born, c. 1740 in Markinch, Fife.
On another line of her family tree concerns another 4x great-grandparent, represented by Sir John Sims/Symes, who was born in 1572 in Chard, Somerset. He married Elizabeth Pynchen (who was born in Fife, although the surname 'Pynchen' is also English) and their daughter was Jane Symes (born in Dunfermline in 1594).
I am wondering how accurate this information all is for one, and also if there was a large ever a smallish concentration of English settlement in parts of Scotland, a case in point being here (if it is true, ofc).
The Scottish diaspora is extensive and substantial, and an enormous amount of Scots emigrated either to England or the New World, but we don't hear much about the migration of English north of the border (althouhg it was obviously never big in number); Alex Salmond and Nicola Sturgeon both have 'English' ancestors.