Etymology and distribution of 乗船.

Norifune 【乗船】^{レベル3
About 50}  The Japanese surnames etymology dictionary.

Ooita-ken Beppu-shi , Hyougo-ken , Gifu-ken Takayama-shi . Distribution that also includes Honomu.

① Ooita-ken Beppu-shi Ishigaki Distribution in the east .

② Gifu-ken Takayama-shi Origin of the mother (Honobu) town. A place name with a record since the Edo period. Because the place name was the Gofu-ken northern part (formerly Hida country) there was a Kofu, it says that it was called "this office".