Etymology and distribution of 揚倉.

Agekura 【揚倉】^{レベル2
About 20}  The Japanese surnames etymology dictionary.

Akita-ken . Aomori-ken Kuroishi-shi Originated as Asseishi (Asishi). A place name with a record in the notation of "sweat stone" during the Warring States Period. Last name was also written as "shallow stone". 浅瀬石 Aseishi reference.