Their descendants are known as "Redlegs".
If they're kin to me it must be back in Scotland, because my Scottish ancestor in the direct male line left Scotland in the 40s (1740s) one jump ahead of the sheriff. He was a MacGregor (basically the Scottish Mafia) and he changed his name to escape his past . . .
That's an interesting question -- would you rather be descended from a professional criminal, or a slave, or a slaveholder? I know I'm descended from Nos. 1 and 3 . . . and probably No. 2 as well, although I don't know exactly where . . .
I ran across some interesting statistics recently. Less than 5% of the slaves transported across the Atlantic came to what is now the US. The vast majority went to Brazil and the Caribbean. Yet mention guilt for slavery or the slave trade and almost always the country that pops up in most people's minds as being responsible is the US.
How often do you hear about Brazil, the country that actually took a majority of the slaves, being liable for an apology or for reparations?