My mother in law is from Shuri, Okinawa. We do not have any information past her parent's names- Saburo Chinen and Masako (?) Yamashiro. She was born in January 1941, Both of her parent's passed away - dad when she was 7 and mom when she was 14. She also had a son (husband) in Nov 1964,(in Futenma) with an American Marine. We do not know who is was. He was an active part of their lives until, as the story goes, he was sent to Vietnam in 1965 and never returned (assumed KIA). We have pictures of him but only in civilian clothes. She went on to marry Gary Dennison who adopted my husband. She is very reluctant to talk about any of the past. We don't have a koseki either. She also has two half siblings that were from her father's first marriage.