Two US presidents, George H.W. Bush and George W. Bush apparently belong to haplogroup R1b DF27>Z196>Z209> CTS4065>S16864 based on the results from the Bush Surname Project. I ran the haplotype in NevGen's haplogroup predictor to determine the subclade. They descend from Reynold Bush (1600-1686) who emigrated from England (Fering Parish, Essex) to the Massachusetts colony about 1640.