Wilmer “Bud” Kostman 92, of Detroit Lakes, MN, passed away on Tuesday, July 2, 2019. A Memorial service will be held at 11:00 am on Monday, July 8, 2019, at the Cowboy Church in Detroit Lakes, MN. Visitation will be one hour prior to the service. Wilmer Kostman was born on August 28, 1926 in Rock Rapids, IA, to Albert and Lilly (Griese) Kostman. Wilmer was raised on a farm in the Rock Rapids, IA area and graduated from Rock Rapids High School. He stayed on the farm after graduation to help his parents with the farm. One afternoon he went to a friend’s house on his motorcycle, it was there that Doris Schmidt spotted him and wanted a ride. The two married on June 4, 1950 in Sioux Falls, SD. The couple moved to Osakis, MN and bought a farm. Wilmer commuted to Fargo to attend NDSU, while Doris took care of the farm. He graduated from NDSU in 1960 with an Engineering Degree. After graduating from NDSU, he started working for Belanca Aircraft in Alexandria, MN. The family later moved to West Fargo, where he started a business called Farmers and Feeders with his friend Roger Tegtmeier. After the death of his partner, he started a new company called Agra Engineering. While running his new company he also worked for Dakon. The family then moved to Devils Lake, ND, where he started working for Devils Lakes Sioux Manufacturing. Bud retired from Devils Lake Sioux Manufacturing in 1997. After retiring, the family moved to the Detroit Lakes area. Bud could not just sit idle in retirement, he enjoyed working and chose to work for Wal-Mart in Detroit Lakes, for over 10 years. He officially retired from Wal-Mart in 2014. Buds hobbies included working, reading and spending time with his family. Deeply loved, Buds passing is mourned by his wife Doris of 69 years; sons Kurt, and Karl (Li) Kostman; grandchildren Ryan (Caitlyn) Valez, and Sydney Kostman; sisters Marvel Huskineson, Eleanor Rognas, and Marciel Walner. Preceding Wilmer in death were his parents; daughter Rebecca Valez; siblings Evelyn Hunt, Norma Steigelmier, Hazel Lohman, Mildred Holst, and Vernon Kostman.