Ikumoto 【生元】2 The Japanese surnames etymology dictionary.
① Hyougo-ken Tanba-shi Iseki Toshi ( Isou ) was a place name with a record since the Nara period. The place name was also written as "stone negative". Hyougo-ken Akashi-shi There is distribution in Uozumachi - shimizu.
② Okayama-ken Katsuta-gun Shouou-chou Origin of Ishi. A place name with a record since the Edo period. The place name also pronounced Ishi. Okayama-ken Katsuta-gun Shouou-chou There is distribution on the black soil. Ishi is in the same place.