Brent E. Osthus

Brent E. Osthus, age 74, of Sioux Falls, SD, passed away on Friday, January 2, 2026, at Dougherty Hospice House in Sioux Falls, SD.  Funeral Services will be at 7:00 p.m. on Monday, January 5, 2026, at the Crawford-Osthus Funeral Chapel in Watertown, SD, followed by a standard “Brent” meal. Please plan to feast with us after the service. The funeral service will be live-streamed and recorded on our website.   

VISITATION will be at HERITAGE FUNERAL HOME IN SIOUX FALLS, SD, on SUNDAY, JANUARY 4, 2026, 3:00pm-5:00pm  

VISITATION will resume prior to the funeral service on Monday, January 5, 2026, from 4:00 p.m. - 7:00 p.m. at the Crawford-Osthus Funeral Chapel in Watertown, SD. 

Burial will be at the Mt. Hope Cemetery in Watertown, SD. 

Brent was born February 20, 1951, in Viborg, SD, to Clifford and Arlene (Erickson) Osthus.  Brent spent his early years in Centerville, SD, and during junior high moved with his family to Rapid City, SD, where he formed many lasting friendships.  The family later relocated to Watertown, SD, where Brent excelled in football and basketball for the Watertown Arrows. He graduated from Watertown High School in 1969. Following graduation, Brent began working for Lakeland Nursery in Watertown.   

Brent married Dianne K. Redlin on August 1, 1971, in Watertown, SD.  He continued working for Lakeland Nursery until 1980, when he and Dianne purchased Jeans Flowers in De Smet, SD. They owned and ran the flower shop and bought the bakery there as well.  Brent went to work for P.A. Braunger Food Supply as an Institutional Food Sales Representative.  He worked for the company and their subsidiaries until his health forced him to retire in 2016. Brent won numerous trips and built friendships for a lifetime in his sales travels throughout the years.  He truly went above and beyond to make sure his customers were number one!   

Brent’s number one priority in his life was his family, especially his grandchildren.  He cherished the time he spent fishing with his boys, especially their annual ice fishing trip and fulfilling his daughter’s requests. Brent enjoyed spending time at “the cabin” in the Black Hills, going to Arizona in the winter with his wife, and teaching his boys the proper terminology of certain life things…like “Fizz/Fuzz” (HaHa).  Everyone knows Brent could never have enough food made for all; he always wanted to make sure people, especially kids, were taken care of.  Brent was recently inducted into the Watertown Arrows Athletic Hall of Fame, an award he was so very proud of.  

Brent is survived by his wife of almost 55 years, Dianne K. Osthus of Sioux Falls, SD; his three children: Chad (Kristi) Osthus of Watertown, SD, and their children, Morgan and Macee,  Emily Osthus of Sioux Falls, SD, and her children, Shelbie (Austin) and Reeghan, Paul (Andrea) Osthus of Baltic, SD, and their children, Tony and Lola; one great-granddaughter, Gianna; one brother, Larry (Jodi) Osthus of Des Moines, IA; one sister, Brenda (Merlin) Smith of Sioux Falls, SD; one sister-in-law, Lynn Osthus of Watertown, SD; and many nieces and nephews. 

Brent was preceded in death by his parents, Clifford and Arlene; and one brother, Gordon.

Arrangements by Crawford-Osthus Funeral Chapel www.crawfordosthus.com Watertown and Hayti

To send flowers to the family or plant a tree in memory of Brent E. Osthus, please visit our floral store.