The Japanese surnames etymology dictionary.
Tochigi-ken Sano-shi . Summary . Abbreviation for Waka Azabu. Tochigi - ken Sano - shi In the town of Hori America, Mr. Sano tells that he succeeded to Mr. Wakao Mibe 's trace and added "Young" of Wakao Azabu, "Da" to "Department" and called it during the Kamakura period. 佐野 reference. It is unknown whether Wakaku Azabu is present.