The Japanese surnames etymology dictionary.
Gunma-ken An'naka-shi . Thing . Gunma-ken An'naka-shi Meiji New surname by monk of Choshuji temple in Saoto sect in the plate nose. In the same temple Kanagawa - ken Yokohama - shi tells from 'Total' of Saoto sect in Tsurumi Ward Tsurumi District and 'View' of Tsurumi. Tsurumi is a place name with a record since the Kamakura period.