Karuishi 【軽石】3 The Japanese surnames etymology dictionary.
Ibaraki-ken Kasumigaura-shi , Iwate-ken Toono-shi , Hiroshima-ken Kure-shi . Ibaraki-ken Kasumigaura-shi Based on Uenoshichi and Shimoyoshichi. Iwate-ken In Miyagi- cho of Toono-shi tells that he was a vassal of Mr. Miyamori who was the lord of the place. Iwate-ken Toono-shi Miyagori Town It was in the Edo era at Shimomiyuke. Tell him that Hiroshima-ken is out there.