While coaching his son's little league team in Fresno, California, Kerry Yo Nakagawa was inspired to preserve the legacy of Japanese American baseball and culture for future generations, and that evolved into a full-time non-profit project, the Nisei Baseball Research Project (NBRP), and the previous version of this updated book. The NBRP exhibit "Diamonds in the Rough" has been shown in the National Baseball Hall of Fame in Cooperstown, New York, and the Japan Baseball Hall of Fame in Tokyo.