A Loss the Size of Texas

A Legacy Even Bigger

On May 9, 2026, the tree care world lost a giant. David Mauk tragically passed away that Saturday afternoon, and his passing sent shockwaves throughout the industry. It has been said that the pain we feel from losing someone is directly correlated to the love we had for them. If that is true, then the outpouring of grief following David’s passing speaks volumes. People from across the country have shared stories, memories, and heartfelt tributes, expressing both their love for David and the profound sense of loss left in his absence.

David was a special man — a husband, father, friend, mentor, and leader to so many. He was a bright light in a world that often lacks positivity, friendship, and genuine leadership. Wherever there was a gap, David seemed to fill it.

At first glance, he appeared larger than life: a big Texas boy who looked seven feet tall, sporting a proper cowboy mustache, offering a firm handshake delivered with confidence and sincerity, and greeting you in a way that instantly made you feel like a friend. But beyond the physical presence that made him impossible to miss, David’s defining characteristic was his heart. He loved people. He approached life with optimism, and his eagerness to connect with others was always evident.

When David spoke with you, he was fully present. He listened to understand, not simply to respond. He cared about your perspective and genuinely valued your time and input. During conversations, he would often tilt his head, nod thoughtfully, and draw out an “OOOOKAY” in his unmistakable Texas accent — a simple gesture that let you know he was truly listening.

David was proud to be an ISA Certified Arborist, and he wore that distinction proudly. The ISA patch was a fixture on the custom-made shirts he wore to conferences, expos, and industry events across the country. He embodied the very best of the arboriculture profession and had a remarkable ability to make people feel welcomed and valued.

He was the kind of person who made our industry special. He was always connecting people, always learning, always teaching, and always growing. David understood how to leverage every opportunity to improve himself and strengthen his organization. He believed that both individuals and businesses rise or fall to the level of leadership available to them, and he worked every day with intention and purpose to serve others better. The relationships he cultivated were never transactional; they were opportunities to encourage, support, and positively influence those around him.

David understood something powerful: living a life of success is important, but living a life of significance is even more important.

Success is what we build, achieve, and accumulate for ourselves. Significance is what we do to help build, impact, and inspire others. David lived a significant life because he valued people. He saw the good in others, believed in their potential, and left them better than he found them. Countless people in our industry can point to a conversation, a piece of advice, or a simple act of encouragement from David that made a lasting difference in their lives.

Like all of us, David faced challenges throughout his life. Yet he carried a resilience that never seemed to waver. He often shared advice that his grandfather had passed down to him: “Son, you’ve got to keep on keepin’ on — you know what I’m saying?” It was simple wisdom, but David lived it every day.

John Wayne expressed a similar sentiment when he said, “You’re going to spend the rest of your life getting up one more time than you’re knocked down, so you better start getting used to it.” David understood that consistency matters more than intensity. He applied that principle faithfully throughout his life, building a beautiful family, a successful business, and a legacy that far outweighs the sadness we feel in his absence.

David was a devoted Catholic who believed deeply in the Lord Jesus Christ as his Savior. His faith was not something reserved for Sunday mornings. He was active in his church community and sought to live each day as a good and faithful servant. His life, his family, and his business all stand as a testament to the values he believed in and the faith that guided him.

As we remember David, perhaps the best way to honor his legacy is to emulate the qualities he shared so freely with others.

Attend an industry event and introduce yourself to someone new. Have a genuine conversation. Mentor a young arborist. Share your knowledge with a business owner who is just getting started. Continue learning. Continue growing. Invest in your family. Honor your faith. Live with intention.

Most importantly, care about people the way David cared about people.

If we do that, his influence will continue to be felt throughout this industry for many years to come.