Etymology and distribution of 鉄下.

Tetsushita 【鉄下】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Ehime-ken . Thing . Ehime-ken Yawatahama-shi From Hagiwami Hachioori Shrine in Ohira (formerly Hagoromori Shrine). The company tells that it was founded after the falling castle in 1585 (Tensho 13 years) of Hagiomori Castle that was located in the same place.