Etymology and distribution of 小馬井.

Komai 【小馬井】^{レベル2
About 20}  The Japanese surnames etymology dictionary.

Oosaka-fu , Aichi-ken · Gifu-ken . Terrain . In Kanagawa-ken , even when folding a branch in Wakayama-ken 's Shimada, tell him that he changed his name from Shimada surname at the Meiji New surname from "Shiba" which leaves the leaves and "Earth of the Earth". Wakayama-ken Hidaka-gun Inami-chou Shimada is a comparative site. Place name with a record since the North / South morning era. 島田 Shimada reference.