Marilyn was born on July 3, 1932, to Andrew and Cleo Gwinn on a farm in Lucas County. She was a homemaker and mother raising six children. She is known as Mom, Grandma, and Great-grandma. She was a member of the R.L.D.S. Church and loved her church family. She taught each one of her children about Jesus and his love. She never met a stranger and would give free hugs to everyone she met. She is loved by many will be missed by all.
Her husband, Francis, and son Bobby Slack preceded her in death. Marilyn is survived by her sons, Tim Slack (Bonnie) of Elk Horn, Ray Slack (Cathy) of Des Moines, Rodney Slack (Lori) of Urbandale; daughters, Connie Martin (Harvey) of Quapaw, Oklahoma, and Rose Slack (Paul Cross) of Des Moines; 15 grandchildren, numerous great-grandchildren and great-great-grandchildren. Brothers, Alvin, Andy, and sisters, Donna and Charlene, also survive her.