In Re the Marriage of Zander

— Dennis Zander appeals the trial court's order of modification extending child support obligations beyond the age of 18. The issue is whether preexisting facts known by the parties at the time of the dissolution proceedings but unknown to the court amount to a sufficient change of circumstances to justify a modification of child support. We answer in the negative and reverse.

Judith and Dennis Zander were married on April 19, 1962. Three children were born of the union: Carolyn, born October 31, 1962; Christine, born February 10, 1965; and Lisa, born September 20, 1968. By divorce decree…