They will celebrate with a family gathering at a later date.
The celebrate will be hosted by their children, Aaron and Cindy Prewitt of Sheldon, and Jessica and Tony Emerson of Spencer. The couple has five granddaughters.
Their children ask family and friends to honor the couple with a card shower by sending greetings to them at 24624 Hedge Ave., Merrill, Iowa 51038.
Doug Prewitt and the former Edie Vondrak were married Nov. 27, 1971, at Blessed Sacrament Church in Sioux City.
Doug is retired from the Sioux City Community School and Edie is retired from in home day care.