My question is whether the following DNA and paper evidence is sufficient to link Witt-1075 to Scotland.
John Witt/Whitt, the VA immigrant, has been well researched, but there were 2 likely candidates for his European origins (based on David Whitt's book of 2004): one from London and one from Scotland. Y-DNA & SNP testing for an established descendant & his brother has linked them to Scotland and the MacGregor Clan (White being a known branch with Quhyt, Qwhyt, Whyt, Whitt, Witt as known variations). The brothers are participating in the various DNA projects for the Clan, and were recently granted acceptance into the Gregor Clan Society based on their application which also includes a paper trail. The likely Scottish ancestor is well documented in David Whitt's book & possible ancestors were thoroughly researched by a professional genealogist in Scotland. That person found Robert Quhyt (Qwhyt) as John's likely father, including a 1645 christening record which coincides with his estimated birth year. Based on additional information (siblings, uncles) found by the researcher, several of those male given names were repeated in John's descendants. Interestingly there was also a 1636 record of a Robert Whytt (mariner) found in VA. Based on headright records, John Witt likely immigrated to VA as early as 1666.
I have also tested my brother's Y-DNA and will be adding the SNP tests needed to determine a Scotland connection. If positive, it will add additional evidence. He was a match to the brothers mentioned above (0 distance at Y-25), with our nearest common ancestor being John the immigrant.
It appears to me with the above evidence and extensive research, along with the DNA results which has been analyzed by experts, that adding Robert as John's father is warranted. Please let me know if there are concerns I haven't considered.
Thanks much! Holly