Karen B. Thomsen was born on March 10, 1947, in Denison to Thomas and Irene (Brensel) Thomsen. She was baptized and later confirmed in the Lutheran faith. Karen graduated from Dow City High School. From an early age, education was a priority in her life and she carried that passion with her throughout her years.
Following high school, Karen continued her education, attending Midwestern College in Denison before pursuing further studies at Morningside College in Sioux City and later Drake University. She is especially proud to have earned two master’s degrees, one in elementary education and the other in learning disabilities, reflecting her deep commitment to academic excellence and to meeting the individual needs of her students. She also studied American Sign Language, further demonstrating her dedication to serving all learners.
Karen began her teaching career in Manning where she taught for several years before continuing her work in Cherokee. She taught in the Cherokee Community School District from 1978 until her retirement in 2004. Throughout her career, she also spent time teaching special education, sharing her patience, compassion and steady encouragement with students who needed extra support. Fourth grade was always her favorite to teach. She loved all of her students and devoted countless hours of time and energy to her classroom. The father of one of Karen’s former fourth grade students, an educator himself, once shared that his son and his classmates never realized how much they were learning from Miss Thomsen because they were always having so much fun in her classroom. Karen remained devoted to her students until she was forced to retire due to her health.
Karen was a member of Alpha Delta Kappa, the Iowa Retired School Personnel Association and a local Senior Citizens group. A longtime member of Bethlehem Lutheran Church in Dow City, she later became an associate member of Bethlehem Lutheran Church in Cherokee, where she was active in Women of the ELCA, Lydia Circle and the Evangelism Committee, and faithfully led the annual Gift Tree for local care center residents each Christmas. She also volunteered at four local care centers, providing treats for Bingo, organizing crafts, serving refreshments at special events and, most importantly, being a friend to residents.
Karen had an enormous heart and found great joy in giving, whether for birthdays, holidays, special occasions or simply because she felt someone deserved a gift. Hundreds of people were touched by her generosity. She often said she did not have many local family members, so her church and community became her family. Karen was especially devoted to the Lily of the Valley country school in Cherokee, where she cleaned, organized third-grade onsite experiences, donated countless items and proudly oversaw the building, work that brought her tremendous joy.
Karen passed away on Wednesday, Feb. 18, 2026, at CHI Immanuel Hospital in Omaha, Neb., at the age of 78 years, 11 months and eight days.
Karen was preceded in death by her parents; brothers, William "Bill" Thomsen and Larry Thomsen; and sister Sheryl Thomsen.
She is survived by her two brothers, John Thomsen of Dow City and Jerry Thomsen of Winchester, Ky.; sister-in-law Lory Thomsen of Denison; and other relatives and friends.
Funeral services were held Wednesday, Feb. 25, at Bethlehem Lutheran Church in Dow City. Rev. Chad Trunkhill officiated the service with interment in the Dow City Cemetery. Recorded musical selections included "Angel" by Sarah McLachlan and "Amazing Grace" by Judy Collins. Serving as honorary pallbearers were Gary Thomsen, JoAnn Hennings, Gary Newland, Diane McCaffery, Rick Vogt, Earl D. Norris, Steve Norris, Chuck Thomsen and Harold Lee Brensel. Serving as pallbearers were Pat Putnam, Shawn Gordon, Randy Norris, Daniel Dandurand, Jason Dandurand and Troy Price. Services were entrusted to Huebner Funeral Home.