thanks — I only had read page 1 of 3!
I also wonder (although this story doesn’t mention it) if the Scots’ intervention on the confederate side had anything to do with their historic antagonism against the Irish. Irish immigrated by the boatload during the Civil War years. Most of them were “encouraged” to join the Union Army because jobs were scarce. In the old country, the Brits traditionally hired the Scots to “oversee” their estates in Ireland. Scots were notorious as harsh overseers and it would seem natural that they would not choose the same side if they wanted to join the conflict over here.