Yasuo Fukuda
Fukuda was born in Takasaki, Gunma, the eldest son of politician (later the 67th Prime Minister) Takeo Fukuda. He grew up in Setagaya, Tokyo, attending Azabu High School and graduating from Waseda University in 1959 with a degree in economics. After university, he joined Maruzen Petroleum (now part of the Cosmo Oil Company). He was only minimally involved in politics over the next seventeen years, working his way up to section chief as a typical Japanese "salaryman". He was posted to the United States from 1962-64. While his father Takeo Fukuda was prime minister from 1976–78, Yasuo became a political secretary. From 1978 to 1989, he was a director of the Kinzai Institute for Financial Affairs, serving as a trustee from 1986 onward.
Kakuei Tanaka
Under Ikeda's cabinet, Tanaka became chairman of the Policy Affairs Research Council, and eventually Minister of Finance. Tanaka's term as minister of finance saw some of the highest economic growth in Japanese history. When Satō became prime minister in 1965, Tanaka was slated to become the LDP's new secretary general, but the emergence of the Black Mist Scandal, where Tanaka was accused of shady land deals in Tokyo, meant that Takeo Fukuda got the job instead.