Etymology and distribution of 諶.

Tan 【諶】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Fukuoka-ken , Toukyou-to , Hokkaidou .

① Fukuoka-ken Kitakyuushuu-shi Distributed in northern Ogura-ku. 夏目 surname is in the same place. 夏目 Natsume reference.

② There is a place name including "Summer". Iwate-ken Morioka-shi Uchimaru was in the Edo period in the clan san Morioka of the clan government. The descendants told Toukyou-to that they moved to the Tokyo era.