Etymology and distribution of 寶川.

Takaragawa 【寶川】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Kouchi-ken , Oosaka-fu · Hyougo-ken . Distribution including the spruce. Origin of Kouchi-ken Nankoku-shi city (Tooti). A place name with a record since the Kamakura period.

※ Origin of Nara-ken Kashihara-shi Tō shi (Toyoichi) town. Place name with a record since the Kofun period. My last name pronounced Toichi, Tooti.

Houkawa 【寶川】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Toukyou-to , Saitama-ken · Kyouto-fu . A variant of 柳渕 .