Etymology and distribution of 洞筒.

Dotou 【洞筒】^{レベル2
About 40}  The Japanese surnames etymology dictionary.

Kanagawa-ken · Toukyou-to · Miyagi-ken .

① Korea type . Terrain . Add "Zawa" to Zhang. There is a record of naturalization on Toukyou-to Setagaya-ku on February 17, 1976. The notation of "Official Gazette" is "Zhang Zawa." The real name is Zhang. 張 Chou reference.

② Sina series . Terrain . Add "Zawa" to Zhang. Kanagawa-ken Yokohama-shi There is a record of naturalization on 22nd March 1979 in Naka-ku. The real name is Zhang. 張 Chou reference.

Doutou 【洞筒】^{レベル2
About 40}  The Japanese surnames etymology dictionary.

Okayama-ken Okayama-shi · Oosaka-fu . Estimated from Yawata Shrine and Seya. Okayama-ken Okayama-shi Distributed in Daifuku, Minami-ku. There is Ueno Hachiman shrine in the same place.