You will have to send for the death cert. They aren't listed in the Counties. Dept. of Health P.O. Box 570 Jefferson City, MO 65102-0570 573-751-6400 or write to Local History & Genealogy Section springfield-Greene Co Library 4653 S Campbell Ave Springfield, MO 65810 417-874-8110 They may be able to find a record of his death.