Etymology and distribution of 白浜.

Shirahama 【白浜】^{レベル5
About 9,600}  The Japanese surnames etymology dictionary.

Gunma-ken Takasaki-shi , Hokkaidou , Miyagi-ken .

① Tochigi-ken Ashikaga-shi Tadaki (Tadaki (Old: Sadaki)) Origin of the town. A place name with a record since the Muromachi period.

② Shizuoka-ken Hamamatsu-shi Birth of Sangaki Mikkaichi-cho Kita-ku. In the Kamakura period the name of the place with a record as "Masaki". Place names are also written as "Taichi" and "Naoki".

Shirohama 【白浜】^{レベル5
About 9,600}  The Japanese surnames etymology dictionary.

立溝 Tatemizo reference.