Goju Ryu Karate, originally known as Naha Te, developed as an empty hand system of defense derived from ancient techniques imported to Okinawa from China by Kanryo Higashionna. After Higashionna’s death, his senior student Chojun Miyagi carried on the Naha Te traditions that have become known as Goju Ryu.
The Shobukan Martal Arts Center in Colorado traces it’s lineage in Goju Ryu karate from Higashionna to Miyagi, to Miyagi’s senior students Seiko Higa, Seikichi Toguchi, and Meitoku Yagi, through their student Masanobu Shinjo to Lee Gray, who is one of Master Shinjo’s senior students, and then to Sam Walker.
Karate training at Shobukan Martial Arts Center is firmly rooted in the koryu (ancient) traditions of: hojo undo (supplementary exercises) kihon waza (foundation skills) kata (form) and oyo (application)
You can read more on Goju Ryu here.