In T. 22 N., R. 18 W. About 12 miles northwest of Kingman. "Campbell was named for the superintendent of a mine near Cerbat in the Eighties. Tubman Ayres, the postmaster was a well known character of those early days." Letter, J. R. Livingston. P.O. established Feb. 19, 1896, Tubman L. Ayres, P.M.