Etymology and distribution of 五百森.

Iomori 【五百森】^{レベル3
About 200}  The Japanese surnames etymology dictionary.

Kagoshima-ken , Miyazaki-ken , Oosaka-fu .

① Topography . From the top of the pond. Kagoshima-ken Kagoshima-shi Shiroyama-machi was in the Edo era in the Kagoshima Samurai of the Clan office. The same clan says "Ikegami" as well. Kagoshima-ken Aira-shi From the Ikenojimon gate of the gate division system in Masuda during the Edo period. Good neighbor . Kouchi-ken Sukumo-shi is based in Hiradatsuchido . 池上 Ikegami reference.

② Miyazaki-ken Kobayashi-shi Originated from Ikenogami in the eastern part of the capital. There was an Ikenogami mansion in the same place in the Edo era in the same place.

③ Hyougo-ken Awaji-shi Originated from Ikenocho, a small figure in the south.