I spent many hours and emails on this search and my opinion is it is false with regard to King Philip war and that story. The only thing I could find was someone said...Blah Blah...and someone had dark skin. So did my mother who was a Scot...have very olive skin and was an Alexander. I may have even unintentionally fostered this a bit and if so I am sorry. I took what someone said as fact and found it was not true in my confirming. So unless someone has something they have just uncovered about King Philip War and the Indian named Alexander that they can confirm, then that is rumor .....I would not put it in my tree.
I and a couple other people really researched this out.