Etymology and distribution of 土石川.

Toishigawa 【土石川】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Yamaguchi-ken . Terrain . Yamaguchi - ken Shimonoseki - shi In Wangtimor - cho, Yoshitaka Ouchi 's warrior of the warring States era Tomonosuke Maki left Mr. Yomaguchi - ken Shimonoseki - shi Matsuya Honmachi Shonenji temple' s Chunyuanji in 1583 (Tensho 11 Year) and tell him that he added 'Wild' by saying that he will drop down in the field. 大内 Oouchi reference. 伯 Haku reference.