Isojima 【磯嶌】1 The Japanese surnames etymology dictionary.
① Topography . From the first valley. Oosaka-fu Kishiwada-shi It is distributed in Daisaidi Town. There is an example of using a "valley" for a store of a shop name. Shimane-ken Hamada-shi Tell him that he was engaged in agriculture in Hōwa Town. Estimated in the Edo period.