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Rock Valley, IA: Donald Loyd Postma, 91, of Rock Valley, Iowa, passed away Monday, February 9, 2026, at Hegg Health Center in Rock Valley. A funeral service will be held Friday, February 13, at 10:30 AM at First Christian Reformed Church of Rock Valley with Rev. Matthew Haan officiating. The service can be livestreamed at https://www.christianworldmedia.com/livechannel/firstcrcrv. Burial with military rites will follow at Valley View Cemetery of Rock Valley. Visitation with the family present will be held Thursday, February 12, from 5:30-7:00 PM at First CRC.
In lieu of flowers, the family would prefer memorials which may be directed to Justice For All Ministry or a Christian School of your choosing.
Donald Loyd Postma, son of Richard and Cora (Vande Vegte) Postma, was born April 2, 1934, in Rock Valley, Iowa and was raised on the family farm. He attended Rock Valley Christian School through the 8th grade. During his younger years, Don enjoyed playing baseball and watching sports. Don proudly served his country as a member of the United States Army from 1955-1957 when he was honorably discharged. He later completed his GED and two years of college at Sioux Empire College (SECO) in Hawarden, Iowa thanks to the GI Bill through the Department of Veteran Affairs.
Don married Donna Grevengoed on October 4, 1957. Don began farming and the couple made their home on a farm near Hudson, South Dakota. To this union, three children were born: Connie, Arla, and Delwyn. On July 7, 1963, while on their way to church, Donna and Connie were killed in an automobile accident. During this time of sorrow, Don held closely to his faith in Christ.
Don found love again when he met Lois Vander Pol and on July 6, 1970, in Sheldon, Iowa, the couple was wed. To this union, four children were born: Lanelle, Sharletta, Keith, and Denise. In 1971 the family moved from Hudson to Ireton, Iowa where Don continued farming until 2000. He also spent 17 years working at a meat-packing plant before retiring in 2003.
Upon retirement Don found joy in volunteering. He volunteered at Hope Haven, working on wheelchairs in Ireton, and also at Justice For All in Rock Valley. In total, he volunteered time to these ministries for 20 years. When he wasn’t volunteering, Don enjoyed vegetable gardening and sharing his produce with family and friends. Don’s faith was a cornerstone in his life. He was a member of the First Christian Reformed Church of Rock Valley where he served time as an elder, usher and was a member of the Men’s Bible Study.
Donald is survived by his wife of 55 years, Lois; 6 children, Arla (Terry) Van Driel of Rock Valley, Delwyn (Corinne) Postma of Ireton, Lanelle (Scott) McCarty of Stites, Idaho, Sharletta (Tim) Vander Pol of Puyallup, Washington, Keith (Aimie) Postma of Le Mars, Iowa, and Denise Postma of Graham, Washington; 18 grandchildren; 19 great-grandchildren; sister, Carol Postma of Arizona; 3 brothers, Clarence Postma of Orange City, Iowa, Stan Postma of Oregon, and Bob (Sherri) Postma of Knoxville, Iowa; and siblings-in-law, Ruth (Les) Dorhout, Jay (LeAnn) Grevengoed, Althea (Rod) Brunsting, Joyce Van Berkum, Martha (Marvin) Leese, and Marlyn Post.
He was preceded in death by his parents, Richard and Cora; first wife, Donna; daughter, Connie Renae; 9 siblings, Gerrit (Josephine) Postma, Henrietta (Dick) Van Maanen, Martin (Katie) Postma, Margaret (John) Bolkema, Lawrence (Esther) Postma, Marian (Mike) Altena, Bonnie (John) DeVries, Shirley (Carl) Vander Schaaf, and Rich Postma; siblings-in-law, Joyce Postma, Laura Postma, Sharon Postma, Russ Van Berkum, Thelma (Don) De Jong, Gerard (Julie and Sherry) Vander Pol, Harold Vander Pol, and Betty Post; and parents-in-law, Jake and Alice Grevengoed and Jerry and Nellie Vander Pol.
First Christian Reformed Church
First Christian Reformed Church
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