David Earl Treanor, 80, of San Leandro, California, died peacefully on January 11, 2022, at his home in Wellton, Arizona.

He was born in Hayward, California, on September 8, 1941, the son of Forrest Lee Treanor and Myrtle Evelyn Madson. He was the second of three sons; his younger brother, Richard, survives him.

After graduating from San Leandro High School, David became a member of the Church of Jesus Christ of Latter-Day Saints, and he soon volunteered to serve a mission for the Church. From August 1963 to November 1965, he served in the Mexico Southeast Mission.

Upon his return, he married Jane Linda Hansen in 1966. He subsequently graduated from Brigham Young University in 1969 with degrees in political science and Spanish.

After working for six years as a Church educator in Idaho, Texas, Tennessee, and Indiana, David returned to California with his young family, where he lived and worked until 1985, living in Clayton. He and his family then moved to Utah, where he worked in publishing and education. In 1991, he moved to southern California, where he married Mary Kathleen (Kathy) Hone. There, he worked as a consultant and entrepreneur, two professions he would pursue for the rest of his life. This work took him around the world — with extended travels in Mexico, Central and South America, the Middle East, and Asia. From Southern California, he would eventually return to Utah, then, following a year in Jalisco, Mexico, he moved to Arizona, where he would be based for most of the rest of his life.

In 2018, near Yuma, he married Michaela Gabriele (Micha) Roth, who survives him, and who cared for him with limitless patience and affection through the health setbacks of his final years.

Those who knew David remember him as a larger-than-life figure: charismatic, brilliant, passionate, charming, endlessly curious. His magnetic, gregarious personality and unmatched sense of humor drew people to him throughout his life, whether they be a cashier at 7-Eleven or figureheads at the highest level of government. He was a voracious reader, leaving an immense library filled with books carefully annotated with his beloved four-color pen. He was also a voluminous writer and translator. Among the many works he left is a collection of poetry composed in the final years of his life, Dirt Road Epiphanies .

But most of all, David was father to his thirteen beloved children: Eric, Jared, Michele, Celeste, Nathan, Ryan, Kimberly, Aaron, Joshua, McKenzie, Quinn, Megan, and Tessa, all of whom survive him. For each of these children he had special nicknames, special terms of endearment, and special significance. He was their father, teacher, coach, cheerleader, pen-pal, texting buddy, supporter, and most ardent defender. At their games, he was always the loudest parent in the gym; at home or on the phone, he was their most loyal advocate. For each of them, he was a force of nature, often bewildering and complicated, and always unquestionably devoted and loving. The daily texts that he shared with all of them consistently included celebrations – photographs, news links – to honor what one of them was doing. It is impossible to calculate how many thousands of miles he drove on behalf of his children, going from one state to another to applaud and support them. He is and always will be an irreplaceable figure in their lives.

He was also a devoted father-in-law to Jenny Clark (Jared), Jed Morley (Michele), McKaye Downey (Ryan), AJ Nakai (Kimberly), Stephanie Andrus (Aaron), Autumn Walker (Joshua), Joshua Fifita (McKenzie), Kaitlyn Griffin (Quinn) and a loving grandfather and friend to his 28 grandchildren and eight great-grandchildren, all of whom survive him.

A reception in David’s honor will be held at the Walker Mortuary in Spanish Fork, Utah, on Friday, February 4, from 6-8pm. A memorial service will be held on Saturday, February 5, at 11am in the Apple Blossom Meetinghouse at 25 West Apple Blossom Way, in Salem, Utah.