121 N.W.2d 176 FRANCES R. SPRADER, TRUSTEE FOR HEIRS OF ALEXANDER A. SPRADER, AND ANOTHER v. HOWARD C. MUELLER. LENA VOSSEN v. HOWARD C. MUELLER AND OTHERS. JUNE L. BERG, TRUSTEE FOR HEIRS OF RICHARD A. BERG, v. FRANCES R. SPRADER AND OTHERS. HOWARD C. MUELLER v. FRANCES R. SPRADER, SPECIAL ADMINISTRATRIX OF ESTATE OF […]