Nankai Electric Railway president Jinkichi Terada as Nankai Club, based in central Osaka. The organization was said to be created as a result of rival railway companies Hanshin Electric Railway and Hankyu convincing Nankai to create a baseball club of their own. While initially met with resistance, the club was admitted to the Japanese Baseball League (JPBL) in the fall of 1938, playing their first games at Sakai Ohama Stadium, but moved into Nakamozu Stadium in 1939. The team's name was changed to Kinki Nippon in mid-1944 as wartime austerity measures forced Nankai to temporarily merge with Kinki Nippon Railway. After the 1945 hiatus in the JBL due to the Greater East Asia War, in 1946 the team's name was changed to Kinki Great Ring and the team won the JBL championship. In mid-1947, when Nankai broke away from Kinki Nippon Railway, they decided to change the team's name, and settled upon the moniker they would use until they would sell the team in 1988 – . The team was named after Nankai's logo, which, at that time, was a winged wheel. Other names considered were Condors, which was rejected because the Nankai representative who supervised the team was bald, and Cardinals, which was rejected because the club wanted to retain their colors, so they settled on the Hawks moniker. After the JPBL was reorganized into Nippon Professional Baseball in , the Hawks were placed into the Pacific League alongside the Mainichi Orions, Hankyu Braves, Tokyu Flyers, Daiei Stars, Nishitetsu Clippers, and Kintetsu Pearls. Under player-manager Kazuto Tsuruoka (known as Kazuto Yamamoto from 1946 to 1958) they became one of the most successful franchises through the first two decades of the Pacific League's existence, taking two Japan Series championships in 1959 and 1964, as well as 10 Pacific League pennants. Kazuto managed the team from 1946 to 1968, becoming the full-time manager after his retirement as a player in 1952. In 1964, the Hawks team sent pitching prospect Masanori Murakami and two other young players to the San Francisco Giants single-A affiliate in Fresno as a baseball "exchange student". On September 1 of that year, Murakami became the first Japanese player to play in Major League Baseball when he appeared on the mound for the San Francisco Giants at Shea Stadium against the New York Mets. In his debut, Murakami pitched one inning, allowing one hit and facing four batters