Etymology and distribution of 新古谷.

Shinkotani 【新古谷】^{レベル2
About 20}  The Japanese surnames etymology dictionary.

Gunma-ken Midori-shi . Creation . Gunma-ken Midori-shi Telling that it is a grass- roots in Minoh Township of the eastern town garland, it tells that it changed from Toonomiya surname at the Meiji New Family name in 1870 in the sense of "an ancient old house". 東宮 Toumiya reference.