Timothy (Tim) R. Klos passed away on April 28, 2026, after a courageous battle with cancer. He is survived by his loving wife, Debra Lynn Klos; his three sons, Matt (Emily), Andrew (Danielle), and Nathan (Dawn). Tim was a proud “Papa” to his seven grandchildren, Rileigh, Kinley, Mason, Kendall, Emma, Kalvin, and Kendra, who brought him endless pride and joy.

Tim was born on October 3, 1955, to Eileen and Russell Klos. He was the oldest of three brothers, alongside Michael and David.

Tim graduated from the University of Missouri–St. Louis and went on to build a successful career as a Software Architect at AT&T, where he concluded his professional journey holding seven U.S. patents.

Tim had many passions, including riding his bikes, woodworking, collecting watches, and spending time at the lake. Above all, he treasured time with his grandchildren and family, who meant everything to him.

He will be deeply missed.

A Celebration of Life will be held at a later date.

Memorial contributions may be made to St. Jude Children’s Hospital or Kidney Cancer Association.