Etymology and distribution of 蓮ケ谷.

Hasugaya 【蓮ケ谷】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Hokkaidou , Yamaguchi-ken . Terrain . From land with grooves. Because Yamaguchi-ken has many same names , he tells that he was renamed. Meiji New Last name in estimation. The real name is unknown.