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There is content here:http://bellsouthpwp.net/B/o/Boyt-Boyett/Page.htm
There is a separate Boyd DNA project that has been in existence since 2002. You will find it listed at Family Tree DNA in Texas. There is also a Boyd DNA list at Rootsweb if you'd like to discuss matches with Boyds.
Please share your results with the Scottish DNA Project at Family Tree DNA.