I had a very dear friend when I was at Edinburgh University, called Betty Ko. She was from Hong Kong, and her family had fled from Canton.
Her father was a wealthy businessman, and after being established in Hong Kong he sent his two daughters to UK to be educated in a Catholic boarding school.
Betty was delightful, and taught me Cantonese. She explained how dangerous it had been for them all, and both she and her sister Susan (another one, I seem to collect Susans!) eventually graduated in Mathematics, Susan from London University.
I do feel they would all have been killed or incarcerated in a frightful Chinese Gulag type of place if they hadn't fled.
Sadly I lost touch with her, but I often think of the Ko family, and hope all went well for them in life.