Memorials may be made to SSM Hospice, the American Cancer Society or the Immanuel Lutheran Angel Fund. Don was the beloved son of the late John A. and Dena Willis; loving husband of the late Marie Willis; cherished father of Donald L. ''Butch'' (Bridget) Willis Jr., David L. (Stacey) Willis and Dennis L. (Julieann) Willis; dear brother of Elberta J. (Connie) Walton and the late Mary L. Willis; dear grandfather of Brett Mull, Jayme Willis, Krista Willis, Kayla Willis and Kimberly Willis; dear uncle, cousin and cherished friend to many. Don worked for Laclede Gas for over thirty years and was a member of American Legion Post 312.