I'm still not sure how they came from "most likely European to possibly from India or the Middle-East"....
Take it with three grains of salt, but from my understanding, she is of mixed ethnicities.
Did they found "evidence" of that in her DNA, Isotopes? We are talking about a huge amount of countries.
Again, take it with three grains of salts, but :
1) Isotopes are far from being reliable. I remember a case in Australia where isotopes said she was of America (or another foreign country). When JD became ID, she actually grew up & lived... in Australia! But in a place not known to isotope scientists. I can't exactly remember the case, but I put isotopes' reliability with two or three grains of salt. Sorry for being a bit of Nestorix with it right now *Apology* *Reverence*
2) IMHO, very humble opinion, they used anthropology. That's it.
In my very humble opinion, she is of mixed ethnicity. I say also that it would not even faze me if she had family dispersed in more than one country while she was alone in UK. Before the Internet & social media, it was much harder to keep in touch and international phone calls were astronomically expensive compared to nowadays (with Whatsapp and such).
#LOEM, Level Of Evidence Myself (from a French social media hashtag, used by doctors, vets... to mean that it's only anecdotal evidence I have read 0 study about, I could only witness it: #
NDPMM, Niveau De Preuve Moi-Même). I am a Jewish Sepharadi by my mom, so in my anthropological features, you'll find features of North African countries. Does it mean that I am of Northern African citizenship? Not at all. My only citizenship is French, clearly. I was born and raised in France my whole life, still living in the same city I was born & raised.
(And I am a polyglot (for readers who don't know, polyglot means speaking at least two languages fluently. I say so because on social medias, English-speaking people thought that it was swearing, so I explain for any potential reader who reads this word for the first time), a passion which has also always been a tool for cognitive rehabilitation with my perinatal brain injury... informally done, out of a medical setting. Languages, law and international logistics is the kind of mixture professional field I want to work in. Call me a bit crazy if you feel like it because factually, my brain injury makes my brain a bit strange. What can we ask more for working with my disability? End of OT, or mods will hit my fingers with a ruler).
(OT again: Bit Of Hope, I know that you know the meaning of "polyglot". But since you are not the only reader here, I don't want people to think that "polyglot" is a swearing word because they have never encountered it before. I don't want to be scolded by a mod or by an admin for bad language... when polyglot is far from swearing, insult... An ounce of prevention worth three pounds of cure!)