Jack Mallory

Jack Mallory passed away on March 12, 2026, surrounded by his family.

Born in Great Falls, Montana, on May 3, 1936, Jack was a man who overcame many challenges and made it his mission to help others. He often spoke of skipping school to go fishing or hunting. After high school he served in the Army during the Korean War. Upon returning home, he worked as a guide in the Bob Marshall Wilderness, where he collected a lifetime of hunting stories. On November 28, 1959, he married Marion and instantly became father to her three children. Together they raised their family in Millegan while Jack ran the L. Johnson ranch for 33 years. He took great pride in his time on the ranch and the lasting friendships formed there. In 2002 he moved to his home in Cascade, where his son Pete soon introduced him to a dog named HayU. Though Jack insisted he would never spoil a dog, he could be seen every afternoon taking her for a drive.

He was preceded in death by his wife, Marion; son, Pete; son-in-law, Dan Yarger; parents, Jack and Ruth; and siblings, Dick and Elaine. He is survived by his brother, Roger Wagner of Tollhouse, California; daughter Debby (Clayton) Bonogofsky and their five children—Richard (Fran) Bonogofsky, John (Brenda) Bonogofsky, Rhonda Nelson (Stephen Huckabaa), Karie (Eric) Keller, and Megan (Shane) Potter—and numerous grandchildren and great-grandchildren, all of Billings, Montana; daughter Kathy Yarger and her son Jack (Mona) Yarger of Ulm, Montana, and daughter Callie (Joshua) Munski and their sons Izaak and Hudson of Cascade, Montana; and daughter-in-law Pam Mallory.

Debby’s daughters Karie and Megan, along with Callie and JD, spent many holidays, summers, and weekends at the ranch with their grandparents, learning valuable lessons and sharing adventures. They often wondered if he ever discovered the rocks, candy wrappers, and JD’s toys they hid in the base of the big willow tree in the front yard. After moving to Cascade, Jack became “Manny” to Izaak, sharing early morning horse-feeding chores and pancake breakfasts before daycare. He took pride in teaching Hudson yardwork and enjoyed watching the boys play baseball, football, and wrestle, though he always found a reason to miss the band concerts. Until the end, he remained a proud and devoted father and grandfather.