Etymology and distribution of 津ケ谷.

Tsugaya 【津ケ谷】^{レベル3
About 300}  The Japanese surnames etymology dictionary.

Nara-ken , Oosaka-fu . In Nara-ken tell her that it was given to the house with lead name and gifted during goodwilling. Estimated in the Edo period. There is an example of using a "valley" for a store of a shop name. 鉛 Namari reference.