Maguchi 【澗口】3 The Japanese surnames etymology dictionary.
Chiba-ken , Tokushima-ken , Kyouto-fu . Wakayama-ken Arida-gun Yuasa-chou Birthplace of Yuasa. A place name with a record since the Heian period. Place names are also written as "Wakasa", "Yukasa", "Yuwasa". Good neighbor . Gunma - ken Kitagunma - gun Shintou - mura Arai, Hyougo - ken Tatsuno - shi Distributed in Kyoto Prefecture.