Irokawa 【色川】4 The Japanese surnames etymology dictionary.
Ooita-ken , Oosaka-fu , Hyougo-ken . 上山 surname available. 上山 reference. Ooita-ken Nakatsu-shi Fukushima is based. Ooita-ken Nakatsu-shi Daigo, Okayama-ken Tsuyama-shi Yamashita was in the Edo period in the Tsuyama clan of the Clan Office. Fukui-ken Fukui-shi It was in Edo era in Kazamaki-machi. Tell him that he was engaged in agriculture generically naming his grandson of the same name.