Sorry but that is just impossible, if she's never been here. Born here, Yorkshire, and moved, under cover of darkness, out off The County is a possibility.
She'd just joined an internet group - which is international but heavily slanted towards UK and Australia - I'm involved with and someone asked her where she was from. She said 'I'm from Yorkshire in England' and several of us responded by saying oh where in Yorkshire, or made the usual jokes about getting a visa to cross the 'border' between Lancs and Yorks.
She said she came from near York, and someone else said, 'ooh I live in XYZ village, do you know it?' and she
then said 'oh I've never been there, it's my dream to go some day, I live in Arizona and I've traced my family tree. My great great great grandfather and his entire family immigrated here.'
And then someone asked 'But where did your other 31 g-g-g-grandparents come from? Did they all come from Yorkshire too?'
LOL!