Etymology and distribution of 古島.

Furushima 【古島】^{レベル5
About 3,300}  The Japanese surnames etymology dictionary.

Yamaguchi-ken , Ooita-ken , Hiroshima-ken .

① Personal name . Hiroshima-ken Mihara-shi In Kui-machi Yoshida told that descendants of Qin Yoshimitsu recorded from 968 to 970 (Year of the year) called. 秦 Hata reference. Yamaguchi - ken Hagi - shi In Oshima it is said to be the descendant of the fallen of Heike. 平 Taira reference.

② Ishikawa-ken Nomi-shi Originated in Yoshimitsu-cho. A place name with a record since the Warring States Period.

Koshima 【古島】^{レベル5
About 3,300}  The Japanese surnames etymology dictionary.

Hokkaidou , Fukui-ken · Aichi-ken . By presumption from defending the clan (Han). Fukui-ken Sakai-shi It is distributed in Chuncheong-cho main shrine.

Kojima 【古島】^{レベル5
About 3,300}  The Japanese surnames etymology dictionary.

Miyazaki-ken , Kagoshima-ken , Niigata-ken .

① Origin of Ehime-ken Seiyo-shi Sanpei-cho Ruzan (Shigiyama (formerly Shigeyama)). Place name with a record since the North / South morning era. Tell him that Mr. Shigeyama was there during the North and South morning era. Miyazaki-ken Higashimorokata-gun Kunitomi-chou Kiwaki is based. It was in Azuchi Momoyama period in Kagoshima-ken .

② Topography . "Mountain" is added to the weight of surname of surname of Amagi archipelago of Kagoshima-ken . Estimated at the time of returning to Japan in 1953. 重 Shige reference.

③ Niigata - ken Nagaoka - shi is based in Miyakono. Shiga-ken Yasu-shi Tell her that she was engaged in agriculture in Nitta. Estimated in the Edo period. There is a 重高 surname in the same place. 重高 Shigetaka reference.