What are the four leading manufacturing states in the Midwest that are east of the Mississippi River? Michigan Indiana Ohio Illinois Wisconsin Kansas Minnesota

Michigan, Indiana, Ohio and Wisconsin.

Explanation:

The Midwest is a region of the United States that lies in the north of the country, slightly to the east.  To the north, the Midwest is bordered by Canada and most of the Great Lakes, to the east by the Appalachian Mountains, to the south by the Southern United States, and to the west by the Great Plains, which partly overlap.   In general, the Midwest is a low-lying agricultural area (the Corn Belt) with major and important industrial and manufacturing cities such as Chicago, Detroit, Milwaukee, Cleveland, Minneapolis and Saint Louis.  

a, both were musicians during the jazz age