dear sir ,today i hear from  my uncle that ,his uncle name xia yu wen ,he was born in Gaoming District,Foshan City ,Guangdong Province.most of our relative had been to Vietnam before.he studied in vietnam many years ago ,after that he return to Beijing China  .we lost contact after he die  years ago .i feel interesting in get in touch with his family .nothing ,just i want to know ...i will appreciate if any one who can provide some more information about he or his family.thank you very much .