Mary Kyle Coltrane

A celebration of the life of Mary Kyle Coltrane, a 74-year-old Buffalo resident who passed away Sunday, October 18th, 2026, at the Johnson County Health Care Center in Buffalo, will be held by her family and friends at a time to be announced. Donations in Kyles memory may be made to Faith Trees at www.faithtrees.org. Online condolences may be made at www.harnessfuneralhome.com

Mary Kyle Coltrane was born on April 1, 1952, in Gillette, Wyoming to Donald and Doris Wagensen. She grew up on the family ranch north of Gillette, where she attended Rawhide one room country school, before going to school in Gillette, graduating from Campbell County High School with the class of 1970. After high school she attended Casper College for two years and received an associate degree in Bookkeeping. She was married on November 24, 1973, in Gillette to Brad Coltrane, and they made their home in Gillette. Kyle was a homemaker and started their family. Brad and Kyle were very entrepreneurial and started and ran many businesses in Campbell and Johnson Counties. They moved to Buffalo in 1982 where they lived and worked until the time of her death.

Kyle was an avid Sudoku and puzzles game player. She loved spending time with her family on the mountain at their cabin. Her passion was spending time with her grandkids. Kyle is survived by her husband of 54 years Brad Coltrane of Buffalo; one son Shelby Coltrane and his wife Amy of Buffalo; one daughter Tristan Coltrane and her partner Shawn Leslie also of Buffalo; two sisters Jan Iberlin and her husband Mark of Buffalo and Lexi Ballard and her husband Mike of Casper; and five grandchildren, Tayden, Kelby, Teagan, Lynly and Stetson. She was preceded in death by her parents and one brother Mickey Wagensen.