My Grandfather come from Canton China a town or village name Chung San (the writing look like that in spanish)to South America-Peru my real lastname endup Yonsen ,because my Granfather use to sign Yon Sen always in documents we found,also we find the name Chu ,my grandfather die in Peru 1891-1940,so my real last name is YON or YONG i'm really not sure, i have picture of my grandfather with his real name in chinese character,but in spanish he name was Enrique Yong(Yon)Chu