Etymology and distribution of 炭口.

Sumiguchi 【炭口】^{レベル2
About 20}  The Japanese surnames etymology dictionary.

Saitama-ken Honjou-shi , Ibaraki-ken Koga-shi . A variant of 田部井 . Saitama-ken Honjou-shi 's "Kodama Town" was the "Foreign Exchange" notation in the Edo period. It is unknown whether the exchange will exist. Tochigi-ken Ashikaga-shi Tell me that he was renamed from Taboui surname by advice of a person who met when visiting a shrine in Shibuku Town. 田部井 Tabei reference.