Uh, that DNA is not unique in the US. Hundreds of thousands of people, at the least, have that combo in the US alone. The various sorts of cultures that get lumped together as "gypsy" in the US actually cover a number of different cultures, not just Rom. And the ancestors who assimilated are hard to trace pre-assimilation, because often they went by multiple names, and in some cases nicknames were recorded as their legal names.
She may well have distant ancestry from some of these communities. Lots of folks do. But those who look white now... it's almost always because their ancestors left their culture, married white people and assimilated.
I think it's like with those who are Native descendants - if your ancestors assimilated, all it is is distant heritage. No rights to culture or ceremonies come through DNA.
In the neopagan and nuage communities, the term "gypsy" is incredibly misused, to mean any sort of hippie who likes to travel, or considers themselves a "free spirit." The actual members of those communities who I'm related to are horrified by the neopagans and nuagers.
