Etymology and distribution of 済渡.

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

Oosaka-fu , Shiga-ken Nagahama-shi . Oosaka-fu Kishiwada-shi Kishiro town was in the Edo period in the Kishiwada clan of the clan office. In Oosaka-fu Kishiwada-shi tell the descendant of a samurai who came from Toukyou-to (formerly Edo). Estimated early in the Edo period.