See Rob Spencer (2021) "Macro Genealogy ", at his site scaledinnovation.com, SNP R-S744 has been identified as the signature of Siol Alpin, FTDNA dates this SNP approx 100-500AD, signature proves a founder effect potentially identified as King Alpin, although there is some question in my mind given the sheer number of Kenneths existing ca 800AD, MAC crzypopmac@aol.com
