haplogroup K
References
King TE, Bowden GR, Balaresque PL, Adams SM, Shanks ME, Jobling MA. Thomas Jefferson?s Y chromosome belongs to a rare European lineage. Am J Phys Anthropol. 2007 Apr;132(4):584-9. PMID: 17274013
Endicott P, Sanchez JJ, Metspalu E, Behar DM, Kivisild T. The unresolved location of Otzi?s mtDNA within haplogroup K. Am J Phys Anthropol. 2007 Apr;132(4):590-1; discussion 591-3. PMID: 17243101