William Allen Lenz

William Allen Lenz was born on March 13, 1939, in Waukegan, Illinois, and passed away on January 14, 2026, in Cottonwood, Arizona.

William is survived by his wife, Phyllis Lenz; his daughters, Tesia Lenz and Kim Books; and six grandchildren. He was preceded in death by his parents, William and Ethel Lenz, and his two sons, William “David” Lenz and Kenneth Lenz.

William was known for his practical intelligence and his ability to design, repair, or build almost anything. He had a natural talent for understanding how things worked and an attention to detail that guided everything he did. Long before online tutorials existed, he relied on textbooks and his own determination to learn new skills. Whether he was solving a household problem or tackling a complex technical challenge, he approached each task with patience and precision.

His career reflected these strengths. William worked in a government laboratory, at Learjet, and later at Kitt Peak National Observatory. At Kitt Peak, he designed and engineered detectors for the 4-meter telescope, providing astronomers with tools to explore the universe. He often shared a favorite story that his “handprints went to the moon,” referring to the rockets he worked on that supported early lunar exploration.

Outside of his professional life, William found his greatest enjoyment outdoors. He had a lifelong interest in boats—both sailing and power—and spent many hours on the water. Motorcycles, camping, and kayaking were also part of the rhythm of his life. He loved his dogs and valued the companionship they brought. These interests weren’t just hobbies; they were part of how he connected with the world and with the people around him.

William shared his passion for outdoor adventures with family and friends, creating memories that remain central to how he will be remembered. Whether it was a day on the water, a camping trip, or simply working together on a project, he enjoyed being active and engaged with the people he cared about.

He would want to be remembered as someone who loved the outdoors, cared deeply for animals, and was always willing to help close friends and family with anything they needed. His steady presence, practical support, and problem‑solving nature made a lasting impact on those who knew him.

The family will honor his life privately. In lieu of flowers, donations may be made to a charity of your choice.

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