Seth was born on April 21st, 2000, in Louisville, Colorado to Jeff and Rachel Brunkow and was welcomed by his older brother, Tanner.
From an early age, Seth had a wonderful personality. He was goofy, kind, caring, outgoing, humble, and always eager to make others happy. He loved the outdoors and found joy in spending time with family and friends.
Seth shared a close bond with his brother throughout their lives. Together, they enjoyed countless adventures, often heading into the mountains in their white pickup truck in search of the next hunting or fishing spot.
After high school, Seth put his many talents to work in a variety of occupations. He was often described as a "Jack of all trades," always willing to learn something new and lend a helping hand wherever it was needed.
In his free time, Seth enjoyed attending Faith Community Lutheran Church in Longmont, Colorado, before moving to New Hampshire. His faith and his family were the foundation of his life. He made it a priority to spend time with those he loved most. Whether he was fishing with his dad, cheering alongside his brothers Tanner and Tristian at the racetrack while little Tanner raced, playing cards and nickels with his grandparents, or enjoying movie nights filled with sweet treats (where popcorn was never allowed), Seth treasured every moment together. Although horses were never quite his favorite, he happily joined his family on trail and arena rides. No matter where he was, Seth felt most at home in the outdoors.
In 2023, Seth met the love of his life, Harlee Gray. Together they moved to New Hampshire in 2024 and began building a life filled with love, laughter, and dreams for the future. Their first addition to the family was their beloved fur baby, Indy Mae, who rarely left Seth's side. Soon after, they received the greatest blessing they could have imagined, a baby girl, Raelynn. November 2026 could not come soon enough for Seth. He was overjoyed to become a father and looked forward to sharing his faith, wisdom, love of the outdoors, and countless new memories with his daughter.
Seth is lovingly survived by his beloved partner, Harlee Gray; his daughter, Raelynn Mable Gray Brunkow (expected November 2026); his parents, Jeff and Rachel Brunkow; his brothers, Tanner Brunkow (Nicole), Tristian St. Onge, and Tanner McKim; his grandparents, Ken and Hilde Lowry, Paul Gadbout and Jenny Humphries, his beloved fur baby, Indy Mae, and his fur nephew, Cooper.
He was preceded in death by his great-grandparents Don Brunkow, Carol and Jim Foster, great grandma and grandpa Husker, and his great-uncle, Werner Trei.
He is deeply loved and will be dearly missed by all who came to know and love him.
Visitation for Seth’s family & friends will be held on Tuesday, August 11, 2026, from 10:00 am - 11:00 am at Howe Mortuary & Crematory located at 439 Coffman Street, Longmont, Colorado. His funeral service will follow at 11:00 am. At 1:00 pm, Seth will be laid to rest at Green Mountain Cemetery located at 290 20th Street, Boulder, Colorado. Following the graveside committal service, a reception will be held at Faith Community Lutheran Church located at 9775 Ute Highway, Longmont, Colorado.
In lieu of flowers the family asks that donations be made to Harlee Gray.
Fond memories and expressions of sympathy may be shared at www.howemortuary.com with his loving family.
