Etymology and distribution of 片馬.

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

Aichi-ken , Shizuoka-ken , Gifu-ken .

① Mie-ken Iga-shi birth origin. A place name with a record since the Heian period. The place name was also written as "Kawai".

② Aichi-ken Shinshiro-shi Birth of Kawai. A place name with a record since the Edo period.

③ Wakayama-ken Arida-gun Aridagawa-chou Birth of Kawai. A place name with a record since the Edo period.

④ Origin of Shiga-ken Higashioumi-shi Kawai-cho. A place name with a record since the Edo period. The place name was "Kawai", and the last name was written "Kawai".

⑤ Aichi-ken Toyota-shi birthplace of Kawai - cho, Ukei- machi. It is distributed in the same place.

⑥ Toyama-ken Himi-shi Originated from Kawaigo (Owl) of Ohno's small character. The last name is also awkward.