Etymology and distribution of 推久.

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

Hiroshima-ken , Oosaka-fu , Kumamoto-ken . Kumamoto-ken Kamiamakusa-shi Distributed in the Yongigatake cho town. There is 須崎 surname in the same place. 須崎 Suzaki reference.