Kaizumi 【貝住】2 The Japanese surnames etymology dictionary.
① From the thinned field by estimation. 綛田 There surname. Wakayama-ken Ito-gun Kouya-chou There is distribution in Koyasan. Nagasaki-ken Hirado-shi The rocky town was in the Edo era in the Hirado clan of the clan office. Good neighbor . Saga-ken Karatsu-shi Distributed in Hashimoto-cho.