My grandfather -Rukio Inouye of San Mateo Cal., who passed away, had the last name of Inouye. He married my grandmother (Yoskiko (Hirata-her maiden name) Inouye -also dead) and adopted her son and daughter (my dad and aunt). The man who she was married to before is my biological grandfather, but I am not aware of his last name nor do I know if he is still alive. My dad was born in 1947 so I am guessing that she divorced her first husband around 1950 or so. I was interested to see if anyone knows of any information on this or if you have any relations to me that would be great if you would email me. Thanks and good luck with all of your searches.