Etymology and distribution of 中向井.

Nakamukai 【中向井】^{レベル3
About 100}  The Japanese surnames etymology dictionary.

Ooita-ken , Fukuoka-ken . Thing . In Fukuoka-ken , he tells that he changed his name from Tsue Surname to Mrs. Stone Surname by a stone similar to a couple and further renamed at the Meiji New Last Name. In the estimation it was in the Edo period that we decided to have a married stone surname. There is also a story that it was worshiped married rock. Period, location unknown. 津江 Tsue reference. 夫婦石 Myoutoishi reference.