With over 50 years of extensive experience in project and construction management, John was known for his keen insight, exceptional leadership, and unwavering commitment to excellence. He was a trusted advisor, a mentor to many, and a respected voice in our industry. His work was not just about managing projects; it was about building relationships, fostering collaboration, and ensuring that every endeavor was executed to the highest standard. His unparalleled expertise in developing, planning, and executing large-scale capital projects has shaped the industry, setting standards that continue to guide best practices today.

John was not just a leader; he was a mentor to hundreds of industry professionals who have gone on to become leaders in their own right. His dedication to mentoring and teaching the next generation of project managers is a testament to his passion for the field and his commitment to excellence. Those fortunate enough to work under his guidance became known as “McNabbies,” a badge of honor that signifies the high standards and unwavering integrity John instilled in his teams.

Throughout his illustrious career, John was renowned for his ability to challenge conventional thinking. He was the first to question assumptions when he disagreed, but he always listened with respect and an open mind. Equally, he was the first to offer praise when he believed you were right. This balance of critical insight and encouragement made him a beloved and respected figure among his peers and protégés.

---

John joined PTAG in 2009 to work on the TransCanada Keystone Project in Houston, where he played a pivotal role until 2012. His leadership extended to significant roles in subsequent projects, including the Marcellus Shale Pipelines in Ohio and the Motiva Chemical Refinery in Houston, among others. His contributions were not only vital to the success of these projects but also to the overall well-being and reputation of PTAG. John taught us the right way to manage large, complex capital projects, embedding his wisdom and experience into the very fabric of our industry.

As we mourn the loss of a dear friend and colleague, we also celebrate the lasting impact John made on our organization and the lives of so many around him. His legacy lives on through the countless professionals he mentored, the projects he brought to fruition, and the industry standards he helped define.