Looking for information about the Shun Family on Okinawa

The Shun family owned and operated the bar/club named Roaring 20's in the mid-1970s in Okinawa City, Okinawa. I was good friends with Taeko and Yoko, who worked there and were daughters of the owners. I was stationed there from May of 1977 to May of 1979. I know the club closed around 1980 and I have had 1 email from their older brother, Hiroshi. I am interested in striking up a correspondence with any of them. There was also a younger sister, named Satomi. Thank you for any information that anyone of have!