Etymology and distribution of 二原.

Nihara 【二原】^{レベル3
About 50}  The Japanese surnames etymology dictionary.

Ishikawa-ken , Toyama-ken . Terrain . From the ranch and the forest. Ishikawa-ken Kanazawa-shi Marunouchi was in the Edo era at the Kaga clan in the Clan office.

※ Topography . Taiwanese line . Added "Maki" to the forest. It was in the name of the rename from the forest family name in Taiwan. 林 Hayashi reference.