Etymology and distribution of 舟坪.

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

Niigata-ken Nagaoka-shi , Toukyou-to , Hokkaidou . "Yoshi" is a favorable character. There is a surname including "rough". Niigata-ken Nagaoka-shi was in the Edo era in Yolka Town.