Etymology and distribution of 外余.

Toyo 【外余】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Miyazaki-ken . 平郡 's variant. Miyazaki-ken tells that Mr. Hei - gun called the county as a "part" of a similar character in the era of warring States. Miyazaki-ken Nichinan-shi飫 肥 was in the Edo era to the Songhua clan of the clan office. 平郡 Heguri reference.