Dean Ahrendt Obituary

In loving memory of Dean Ahrendt of Hartford, South Dakota, who departed this world on January 4, 2026 at the age of 75. Dean leaves behind a legacy remembered by family and friends. Family and friends can send flowers and condolences in memory of the loved one. Leave a sympathy message to the family on the memorial page of Dean Ahrendt to pay them a last tribute.

He was predeceased by: his parents, Walter Ahrendt and Magdalen Ahrendt (Spielmann); his son Joseph; his brother Dennis; his siblings-in-law, Susan Ahrendt, Shirley Ahrendt, Barb, Tom Warne and Colleen Jesse; and his parents-in-law, Robert and Lois O'Kane.

He is survived by: his wife Therese O'Kane of Hartford; his children, Sarah Rajewich (Dean) of Hartford, Jill Siedschlag (Brian) of Hartford and Charlie Ahrendt (Kelli) of Hartford; his grandchildren, Tyson Lemke, Taylor Rajewich (Casey Kleinsteuber), Emma Rajewich, Andrew Rajewich, Trey Struck, Kyla Jackson (Reis), Nate Struck, Felicia Winter (Chuck), Jessica Siedschlag, Theodore Petersen, Quincy Petersen, Franklin Petersen and Huxley Ahrendt; his great grandchildren, Brennan Marks, Aubree Winter, Adalynn Winter and Bodhi Winter; his siblings, Wally Ahrendt (Brenda) of Sioux Falls, Tom Ahrendt (Patty) of Hartford and Jim Ahrendt (Claudia) of Sioux Falls; and his siblings-in-law, Diane Ahrendt of Humboldt, Bobby O'Kane (Jean) of Hartford, Tom O'Kane of Beresford, Mary Poppenga (George) of Sioux Falls, John O'Kane (Barb) of Hartford, Rosemary Jesse (Mike) of Hartford and Marty Jesse of Humboldt. He is also survived by numerous nieces, nephews, and life-long friends.