Photo courtesy of Heritage Funeral Home and Cremation Services - Sioux Falls
Sep 12, 1947 - Feb 3, 2026 (Age 78)
I was so sorry to hear of Mitzi's passing. She was a special lady and I had the pleasure of working with her at CPC/Sioux Valley/Sanford for many years. She always had a smile on her lovely face and a positive word. My sincere sympathy to all of you.
Jeanne Litka
February 06, 2026 | Sioux Falls, SD | Coworker
Just reading funeral info about Mitzi so unable to attend. I worked with Mitzi for several years...she was in Records at Sanford and I was in Transcription. We had many visits with knowing people in common. She was a delightful lady, enjoyed her sweet personality. Sending my condolences to her daughters and family.
Lynne Haugstad
February 06, 2026 | Sioux Falls, SD | Friend
The Barnes Family is sending you love and comfort during this time. We will always remember her kindness and all her baked holiday treats! Love, Angie and Blane
Angela Barnes
February 06, 2026 | Quincy, IL | Family
I worked with Mitzi,in Medical Records for 17 years. She always had a smile for everyone.
We had great talks after we both watched Project Runway.
My prayers and sympathies to Mitzi 's family
Peggy stanton
February 05, 2026 | Sioux Falls, SD | Friend
I’m so sorry to hear about Mitzi passing. . I will forever remember her homemade truffles.
Dan Quam
February 05, 2026 | Madison, SD | Friend
We were sad to hear of Mitzi’s passing. We were fortunate to have Bob and Mitzi as next door neighbors for many years. They were wonderful people and we missed them dearly when they moved into a smaller home. Mitzi always had a beautiful garden in the backyard. Our condolences to her family.
Scott & Dianne Jansen
February 05, 2026 | Sioux Falls, SD | Neighbor
Rest in peace Mitizi, and God be with the family. I know that you are in a much better place
Sandra Weissenburger
February 04, 2026 | Sioux Falls, SD | Friend
Mitzi Bittner, 78, passed away peacefully on February 3, 2026, under the excellent care of Ava’s House, surrounded by those she loved.
Visitation and funeral services will be held at Our Redeemer Lutheran Church on Friday, February 6, 2026. Funeral services will begin at 10:30 a.m., with family present for visitation one hour prior to the service.
Mitzi was born September 12, 1947, in Des Moines, Iowa, to Roy and Marie (“Pootsie”) Calvert. She graduated from Lincoln High School in Des Moines and attended Central College in Pella, Iowa.
A friend introduced her to the love of her life, Bob Bittner, while he was in town for a banking conference. They were married on June 29, 1968, in Des Moines, and shared 53 years of devoted marriage marked by deep love, steady companionship, and a lifetime of shared memories.
Mitzi was a proud and caring mother to three daughters, who were the center of her world. Her legacy continues through her five cherished grandchildren, who brought her endless joy and laughter. She was active in their lives and attended their activities whenever she could.
Mitzi and Bob were longtime members of Our Redeemer Lutheran Church and took great pride in their faith and dedication. She worked for more than 30 years in the medical records department at Sanford. After retirement, Mitzi and Bob enjoyed time with their grandchildren, gardening, baking, and sharing cocktail hour with friends and family. She also had a well-known sweet tooth.
Mitzi will be remembered for her kindness, gentle strength, and the way she made everyone feel loved and welcomed. Her presence was a gift, and her absence will be deeply felt by all who knew her.
She is survived by her daughters, Ann (Charles) Quam of Poulsbo, Washington; Kristen Bittner of Sioux Falls; and Robin (Curt) Aden of Sioux Falls; her grandchildren, Andrew and Abby Quam, Lauren and Brooke Aden, and Jordyn Bittner; and future grandsons in- law Cameron Knese and Dylan Heino.
She was preceded in death by her parents and her husband, Bob.
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