Mar. 11—A Joplin couple are being held on charges that they assaulted two women Sunday morning at a residence on West 15th Street. Amanda M. Caldwell, 39, and Corbin A. Caldwell, 45, are charged with second-degree assault and armed criminal action, with April 14 set as the date for their initial arraignment in Jasper County Circuit Court. Capt. Will Davis said police were called at 8:43 a.m. .