Brian Preston Koehler

After a long battle with cancer, Brian Preston Koehler died on June 20, 2025. He was surrounded by his loved ones and was not in pain.

Brian is survived by his wife of forty-one years, Joni Koehler, his son, Adam Koehler, his daughter, Amy Koehler Catterson, his son-in-law, Arman Daniel Catterson, and grandsons Gabriel Heshmat Catterson and Anthony Terry Catterson. In addition, he is survived by his sisters, Ginger (Jonathan) Garcia and Bonnie (Tim) Friesenhahn, and their families, including nieces Holly (Rene) Muniz, Maggie (Dustin) Burleson, Erin (Tucker) McCord, Lindsay (Trace) Morrow, and nephew, Nicholas (Mairead) Friesenhahn, along with seven great nieces and two great nephews. On Joni’s side, he is survived by in-laws Audrey and Terry Wilkinson, brothers-in-law David (Tracey) Arneson and Jonathan (Mayela) Wilkinson, and sister-in-law Libby (Kevin) Paterson, and their families, including nieces Victoria and Emma Wilkinson and Kaitlan Gil-Najarro, and nephews Austin, Jordan, and Travis Paterson. He is preceded in death by his father, Preston Herman Koehler and his mother, Josephine Kunz Koehler.

In family gatherings, Brian was the one the babies all gravitated toward. He was kind and patient and always put his family’s needs before his own. He loved hunting and being in nature and also tinkering with broken machines, often fixing things that would otherwise be lost causes. He volunteered for many years in his church and community.

Brian worked at Southwest Research Institute in the Fuels and Lubricant division for 39 years. He frequently traveled for his job, and went to many different countries, including China, which he visited multiple times. He was a committed employee and was trusted by many in his workplace as a problem solver.

As busy as his work life was, he found time to coach tee-ball and baseball, drive teenagers to contests and events, and be a present and loving parent, husband, brother, and son.

Our hearts are broken over his loss, but we know that his suffering is at an end, and for that we are grateful. We know that he is with his parents now and is probably out hunting or watching all of the James Bond movies.

Brian’s celebration of life will be held at Primrose Funeral Home at 3 p.m. on July 27, 2025. In lieu of flowers, Brian requested that donations be made to the American Cancer Society at donate.cancer.org.