Robert Duane Kolkman, age 87, of White Cloud passed away on Wednesday, April 4, 2018. Bob was born on December 20, 1930, in Grand Rapids to Joe G. and Hilda (Koning) Kolkman and had worked for Baker Catering in Grand Rapids. Bob enjoyed boating, fishing, cooking, and was a life member of the Mecosta County Sherriff's Posse. Robert is survived by his daughters, Laurie Ann Kolkman of Grand Rapids, Wanda (Jim) Curtis of Thompsonville, and DuAnne Kolkman of Florida; 6 grandchildren; 9 great grandchildren; and brother and sister, Donald Kolkman and Betty (Richard) Sterkenburg. He was preceded in death by his son, Rick Kolkman; daughter, Dayle Kolkman; sister, Louise Snider; and brothers, Gerald Kolkman and Edward Kolkman. There are no services at this time. Friends may share memories and condolences online with the Kolkman family at www.crandellfh.com.