Close, but no cigar.  I believe it's Genie Milgrom's story.  She is originally from Cuba and moved to the USA.  Ask me any question about Australian geography and I'm sure I'd fail that! Also, while she did go to Spain, I believe her family emanates from the border area with Portugal.  Nonetheless, it is a fascinating story and her first book was delightful.  And lots of people told me about the recent NPR story knowing of my interest.

Thanks for bringing it to the attention of others who might not have seen it.  

Regards,
Barbara Hershey
Portland, Oregon, USA