Duncan Insurance Group was founded in 1978 by John M. “Jack” Duncan in Irwin, Pennsylvania. Jack launched the firm as an independent insurance agency with a clear, simple guiding philosophy: “If you take care of your client, everything else will take care of itself.” From the very beginning, he built the business around listening carefully, offering honest guidance, and doing what was right for every individual, family, and business he served. That client‑first mindset continues to shape every relationship we build and every recommendation we make.

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Jack’s philosophy, combined with his deep care for the Irwin community, laid the groundwork for what would eventually become Duncan Financial Group. He believed a business should strengthen the town it calls home, and he invested time and energy into local organizations, events, and causes. Those early choices established the core values, integrity, service, and community commitment, that still define our culture today and guide how we protect, support, and advocate for our clients.

David Duncan, Jack Duncan’s eldest son, joined the family insurance firm in 1979. Working alongside his father, David recognized that he could help clients even more by expanding beyond insurance into broader financial services. He saw an opportunity to guide clients in managing and protecting their money, personally and for their businesses. 

Driven by this vision, David began building out services that went beyond traditional insurance, adding financial planning, tax preparation & planning, investments, and business financial solutions such as group benefits & 401k plans. As this holistic approach took shape, the firm evolved to reflect its expanded capabilities. 

In 1998, David’s vision became a reality when Duncan Insurance became Duncan Financial Group. Duncan Financial Group continues to provide integrated insurance and financial services, helping clients protect, grow, and manage their wealth with a comprehensive, client-first approach.

John M. Duncan, Jr., David’s younger brother, joined the family business to work alongside their father, Jack Duncan, and quickly immersed himself in all areas of insurance, both personal and commercial. From the start, he embraced his father’s core philosophy: put clients first, act with integrity, and build lasting relationships based on trust.

As the business grew, John took on increasing responsibility for the insurance division. When Jack passed away in 1997, John assumed leadership of the insurance side of the company, committed to honoring his father’s legacy and serving the many clients who relied on the Duncan name.

Today, John leads all insurance operations as President of Insurance at Duncan Financial Group. Under his direction, the insurance department has expanded its services while preserving the family’s client‑first values.

Beyond his role at the firm, John is deeply involved in the community, volunteering his time, expertise, and support to local initiatives. His dedication to both clients and community has made him a respected pillar of the region and a strong example of service to others.

Lori Duncan, sister of David and John, joined the company several years after her brothers and brought with her a fresh perspective, a collaborative spirit, and a deep commitment to the family’s values. From the moment she became part of the organization, Lori’s presence was felt across every department. She quickly emerged as a natural leader who not only energized the entire team but also challenged those around her to think bigger, work smarter, and serve clients with an even greater level of care and attention.

Lori played a pivotal role in elevating performance standards throughout the firm. She helped refine internal processes, encouraged continuous learning and professional development, and championed a culture of accountability and excellence. Her influence contributed to a workplace where team members feel supported, motivated, and empowered to deliver their best work on behalf of clients every day.

The third generation of the Duncan family has ushered in a powerful new era for Duncan Financial Group. One defined by innovation, strategic growth, and a renewed commitment to the values that started it all. Building on the foundation laid by Jack and expanded by David, this new generation has made the firm stronger, more agile, and better prepared to guide clients through an increasingly complex financial landscape.

David’s oldest son, Brian Duncan, was the first of this generation to join the firm, stepping into the family business with a deep sense of purpose. While working alongside his father, Brian earned his master’s degree in business and quickly became a driving force in the evolution of the firm’s financial services, helping to refine and expand offerings in wealth management and comprehensive financial planning.

In 2022, David formally passed the torch to Brian, appointing him Chief Executive Officer of Duncan Financial Group and affirming the continuity of the family’s legacy. Today, Brian leads the organization with a modern, forward‑looking vision that remains firmly rooted in the timeless principles instilled by his grandfather and father: integrity, service, relationships, and community. Under his leadership, the firm is embracing new technologies, enhancing the client experience, and expanding its reach—while preserving the personal attention, trust, and client‑first mindset that have defined Duncan Financial Group for decades.

Following Brian Duncan’s contributions, the Duncan legacy was further sustained by three additional family members: Lance, Nathan, and Emily together they bring fresh energy, new ideas, and a shared commitment to the core philosophy that has guided the firm from the beginning. With three generations working from the same set of values, Duncan Financial Group moves confidently into the future while staying firmly rooted in its family legacy.