I am right in my observation that in 1959 roughly half of Scotland voted Tory. They were losing ground long before Thatcher, for reasons which I have not yet researched. I distinctly remember, however, in 1963, when Harold MacMillan resigned as PM and was replace by Lord Home, there was a by-election pending in the "safe" Tory seat of Kinross and Perthshire. The chosen candidate, George Younger, was persuaded to stand down in favour of Home, so that he could have a seat in the Commons. Home was duly elected and wickedly satirised on the TV show TW3, which portrayed the electors of the said constituency as sheep. Younger was suitably rewarded with the "safe" seat of Ayr, and became Scottish Secretary. On Home's retirement the electors of the aforesaid constituency chose an absolute buffoon, Nicholas Fairbairn, who probably did far more to damage Anglo-Scottish relations than William Wallace.