R1b s141 Anatolian r1b in the uk

[steveburt]

Hi I recently tested with BRITAINSDNA and was told I am R1b s141 which they call Anatolian Celtic. I believe my haplogroup is also called r1b ht 35 due to my having the eastern variant of a DYS value rather than the western. I am looking for information or guidance in regards to which ancient people this is belived to be for me to read about and how/with whom and when this group would likely have arrived in the UK. Many thanks