Etymology and distribution of 今井松.

Imaimatsu 【今井松】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Nagano-ken Matsumoto-shi , Nagano-ken Adzumino-shi . Nagano-ken Matsumoto-shi It was in Azusa Azusa during the Edo period. Tell him that he changed the name from Yazawa surname in the same place. 矢沢 Yazawa reference.