Cover photo for Diana Rose Oldenkamp's Obituary
Diana Rose Oldenkamp Profile Photo
1937 Diana 2021

Diana Rose Oldenkamp

June 12, 1937 — June 5, 2021

Hawarden, Iowa

On Saturday, June 5, 2021, Diana Rose Oldenkamp was called home to heaven. She lived a life of service and faith and is now at peace singing with God’s heavenly choir. The memorial service will be held Sunday, June 13, 2021 at 4:00 p.m. at Peace Lutheran Church of rural Sioux Center, IA with Rev. William Loefke officiating. Visitation, with the family present, will be held at Porter Funeral Home, Hawarden, IA on Saturday, June 12th from 5:00 p.m. to 7:00 p.m. Condolences may be sent to

In loving memory of

Diana Rose Oldenkamp

Diana Rose Oldenkamp was born on June 12, 1937, on the Rehder family farm in rural Hawarden, IA to Albert and Frieda (Lange) Rehder. She began her education at rural school Garfield #8 followed by Hawarden High School where she participated in music, debate, librarians club and FHA graduating in 1955. She then attended Augustana College receiving a 2-year teaching certificate in 1957 and taught third grade in Hawarden for two years.

She met her husband Robert (Bob) Oldenkamp of Rock Valley, IA during high school at Peace Lutheran Church, rural Sioux Center, IA, where they were married June 14, 1957. They lived on their farm northeast of Hawarden, IA where they farmed for 45 years and raised their three children, Joel, Rose Marie and Melinda. Later, Diana also worked 8 years as a computer chip processor at Coilcraft, Inc. in Hawarden.

She was active in serving her community as a member and president of the Hawarden Hospital Auxiliary Board and the Big Sioux River Valley Historical Society. She also served at Peace Lutheran Church as a Sunday School teacher for 30 years as well as the Women’s Group. An avid sewer, Diana enjoyed making quilts for Lutheran World Relief. She also loved reading, baking, and gardening.

Diana’s faith reflected in all she did, giving selflessly to her husband, children, grandchildren, and all she knew.

She is survived by her husband, Bob; three children, Joel (Georgenea) Oldenkamp of Spencer, Rose Marie (Roger) Sager of Munith, MI, and Melinda (Joe) Voelcker of Gurnee, IL; brother, Orville Rehder of Hawarden; sister, Rima (Ron) Hartman of Sioux City, IA; two sisters-in-law, Phyllis Rehder and Shirley Rehder both of Hawarden; 6 grandchildren, Jay and Jeremie Oldenkamp, Montana (Fadora Gatt) and Lily Sager, and Mackenzie and Sophia Voelcker; a great-granddaughter, Harmony Sager; and nieces and nephews.

Diana was preceded in death by her parents; father and mother-in-law, Joe and Pansy Oldenkamp; two brothers, Merlyn and George Rehder; two sisters-in-law, Mary Rehder and Carol Rehder; and son-in-law, Stephen Ames.

Memorial donations will be directed to the Peace Lutheran Church Building Fund. Peace Lutheran Church mailing address is 2512 380th Street Sioux Center, Iowa 51250.

To order memorial trees or send flowers to the family in memory of Diana Rose Oldenkamp, please visit our flower store.

Service Schedule

Past Services

Visitation with the family present

Saturday, June 12, 2021

5:00 - 7:00 pm (Central time)

Porter Funeral Home in Hawarden

712 10th St, Hawarden, IA 51023

Enter your phone number above to have directions sent via text. Standard text messaging rates apply.

Funeral Service

Sunday, June 13, 2021

Starts at 4:00 pm (Central time)

Enter your phone number above to have directions sent via text. Standard text messaging rates apply.


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