class of 1947 | election year | class of 1950
--- | --- | ---
#1 (1947: #1, 6-year term) | #1 (1947: #2, 3-year term)
Hajime Miyoshi (Co-op) | 1947[1] | Tsunetarō Katō (JLP)
1950[2] | Takashi Morisaki (JSP)
Kazuo Shirakawa (Indep.) | 1953[3]
1956[4] | Tarō Hirai (LDP)
Keikichi Masuhara (LDP) | 1957 by-el.[5]
Juichi Tsushima (LDP) | 1959[6]
1962[7]
Tan Maekawa (JSP) | 1965[8]
1968[9]
1971[10]
1974 by-el.[11] | Takushi Hirai (LDP)
1974[12]
Kenji Manabe (LDP) | 1977[13]
1980[14]
1983[15]
1986[16]
Jun Kioka (JSP) | 1989[17]
1992[18]
Kenji Manabe (LDP) | 1995[19]
1998[20] | Toshio Yamauchi (LDP)
2001[21]
2004[22]
Emiko Uematsu (DPJ) | 2007[23]
2010[24] | Yoshihiko Isozaki (LDP)