Cover photo for Diane Frohwein's Obituary
Diane Frohwein Profile Photo
1930 Diane 2022

Diane Frohwein

July 27, 1930 — December 27, 2022

Sioux Falls, South Dakota formerly Sanborn, Iowa

Sioux Falls, SD: Diane Frohwein, 92, of Sioux Falls, South Dakota, formerly of Sanborn, Iowa, died Tuesday, December 27, 2022, at Avera Prince of Peace in Sioux Falls. A private family funeral service will be held Thursday, January 5, 2023, at Porter Funeral Home in Rock Valley, Iowa. Following the service, Diane’s family will greet friends during a public visitation from 11:00-11:30 AM at the funeral home. The committal service will be held at 1:30 PM at Roseland Cemetery in Sanborn, Iowa.


   In lieu of flowers, please donate to the The Gideons International ( or Dougherty Hospice House (  If you are interested in knowing more about the gospel that defined Diane’s life, she would recommend opening your Bible and start by reading John 3:16-18. Porter Funeral Home of Rock Valley is assisting the family with arrangements.


   Dora Diane Frohwein, born July 27, 1930, went to eternal rest with her Heavenly Father on December 27, 2022. She was born in Rock Valley, Iowa to Wren and Henrietta (Keizer) Reitsma. Her life was one of love and service. She was married to Raymond Bethke of Hartley, Iowa on September 4, 1948. To their marriage was born Sandra, Mark and Ronda. Diane was widowed in 1955 as a result of a farming accident. On August 27, 1958, she married Franklin “Bud” Frohwein. Their family of five eventually welcomed another child, Jeffrey. Diane spent many happy years and created countless memories with family and friends on the Frohwein farm in rural Sanborn, Iowa.


   Diane enjoyed cooking, crocheting, and keeping house. Moreover, her faith in Jesus Christ was the most essential element of her life. She was an active member of her local Presbyterian church in Sanborn where she taught Sunday school for many years, bringing the saving grace of the gospel to young hearts. She lived by example. Diane was confident in her convictions, honest in giving advice, generous with her time and resources and loved with an unquestionable fierceness. On a foundation of faith, Diane and Bud built a family filled with love, sincerity, discipline, hard work, and much laughter. Her legacy is a resounding testament to the goodness of a God greater than adversity and true to His promises.


   Diane is survived by her three children: Sandra (David) Westra, Mark (Sandy) Frohwein, (Daniel) Babl and Jeffrey (Martha) Frohwein; ten grandchildren; twelve great-grandchildren; and four siblings.


   She was preceded in death by her parents; husband’s, Raymond Bethke and Franklin Frohwein; daughter, Ronda Babl; and 2 siblings with an additional sibling passing the same day.       

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Diane-s Memorial Folder.pdf

Service Schedule

Past Services


Thursday, January 5, 2023

11:00 - 11:30 am (Central time)

Porter Funeral Home - Rock Valley

1704 15th St, Rock Valley, IA 51247

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Thursday, January 5, 2023

Starts at 1:30 pm (Central time)

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