Etymology and distribution of 井釡.

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

Tochigi-ken . 石田 family name. Tochigi-ken Utsunomiya-shi Honmaru-machi was in the Edo period in the Utsunomiya clan of the clan office. 石田 Ishida reference.