Advanced DNA testing suggests her biogeographical origins trace back to Eastern Iran or Afghanistan, possibly with a Persian background:
King County Medical Examiner's Office Teams with Othram to Solve the Mystery of "Mary Anderson"
dnasolves.com
When I was looking at the "Mary Anderson" case, I notice they submitted her fingerprints to Interpol, thinking she may have been from Canada.
I tend to believe that she is a immigrant. The ethnicity DNA location is quite specific. (I personally think she is likely Iranian..but that's just me, based on her dress etc)
She didn't have an accent. In the movie, "Not Without My Daughter", Dr M, was an Iranian physician, had been in the US since 1961. The Immigration Act of 1965 removed country quotas and more Iranian immigrants began to appear in the US with HB-1 Visas. Many were professionals.
She could have been in the US for quite some time or she could have arrived later. Based on her dress, approx age and lack of accent, she could have arrived in the 60's or early 70's.
I knew Iranian students in the late 70's, but she doesn't give me this vibe.
I think she is in the older range of the age approximation. She could be as old as 55.
I think there is a professional background with a spouse or even herself.
I have no idea if there is access to immigration records or what....
I'm envisioning a 30 year old and her husband and I'm envisioning a professional. (MOO)
I could be totally wrong!
OK my 2 cents!