Clan MacNeil here, being of dubious lineage myself, (wonders how much MacNeil and Harris and Mingus and Cherokee and who knows what else have mixed into my blood.) My grandmother was, apparently, adopted (but NOT) by her foster parents. I don't know if I can explain *that* except that they must have took her in but never went through an official adoption process.
My grandmother was an illegitimate daughter of I don't know who, but my fiendish aunt is trying to trace our ancestry. :=) Seems to be a MacNeil. If anyone knows of Mingus (apparently settled Kentucky, I'd guess from the name it was German settlers) let me know. If anyone knows Harris (now *that* side of the family is gonna be hard to trace, Grandfather Edward was, um, sometimes a bit crazy, I don't have much information on that side of the family. And Harris is a pretty common name.)
Of course, MacNeil information would be welcome.
My aunt is is, least I heard, a fanatic about geneology. But then she's also into ET, Bermuda Triangle, aliens... at least geneology is real.
(parenthetical note: I do not deny strange things, but I do need a bit of hard evidence.)
We've traced the family back to the 1800's, but (as yet) I don't think we've actually traced it back to immigrants or Scotland.