MERCANTILE BANK OF Kansas City, an affiliate of St. Louis-based Mercantile Bancorp, has elected four directors. They are:
* Gene A. Budig, chancellor of the University of Kansas.
* William A. Hall, assistant to the chairman of Hallmark Cards Inc. and president of Hall Family Foundation.
* A. Drue Jennings, chairman and president of Kansas City Power and Light Co.
* Ronald T. LeMay, president and chief operating officer of the long-distance division of Sprint.