Etymology and distribution of 石加.

Ishika 【石加】^{レベル3
About 50}  The Japanese surnames etymology dictionary.

Kanagawa-ken Yokohama-shi . Personal name . Niigata - ken Nagaoka - shi Meiji New surname by Watanabe surname sumo wrestler who was called Ueno Sea in the Edo era in Oguniwa Town Oguni Town. 渡辺 Watanabe reference.