Etymology and distribution of 沢久保.

Sawakubo 【沢久保】^{レベル3
About 50}  The Japanese surnames etymology dictionary.

Aomori-ken Hirakawa-shi , Aomori-ken Aomori-shi . There is 須田 surname. Aomori-ken Hirakawa-shi In Honcho tells Nagano-ken that it was Forest name in Azuchi Momoyama period. 森 Mori reference. Aomori-ken Hirakawa-shi Tell him that he was engaged in agriculture in Koyamori. Estimated in the Edo period. 須田 Suda reference.