Company Isamu Matsuura was born on August 20, 1920, in Seattle, Washington. He was the second child of Yoichi and Toyo (Nishimoto) Matsuura. Isamu’s siblings were: Setsuo James, Masako, Kenge, Joe, and Kiyoke. Yoichi emigrated to Seattle from Hiroshima Prefecture, Japan, in 1898 at the age of 20. In December 1913, he returned to