Oguro 【小黒】5 The Japanese surnames etymology dictionary.
Iwate-ken Toono-shi . Heteromorphism of 音喜多 . Iwate-ken In Toono-shi tells that he changed the name from the Beido surname in the Edo period. 音喜多 reference. There is also a story that the same residence from Yamanashi-ken came to the North and South morning era.