Roma from Northwest India affirms assertion in Grandpa Was A Deity: How A Tribal Assertion Created Modern Culture and supports Genesis of Genesis ... Mathematics in the Book of Genesis.
We still need yDNA from Stonehenge – though mtDNA from the area, in the appropriate time period, would also go to affirming the link.
In Egypt, we have the assertion that King Tut’s family was R1b and therefore directly connected to most of British population. But the Egyptians have ducked the issue of establishing the pre-dynastic line for Tut. they even burnt down the building containing the Tut DNA.