Gibson C. Armstrong graduated from Lampeter-Strasburg High School and holds a Bachelor of Science in political science from the United States Naval Academy. He served nine years in the United States Marine Corps, culminating in the rank of captain. Armstrong transitioned to a career in public service, where he was elected to the Pennsylvania House of Representatives and chaired the Renewable Energy and Environmental Caucus. He has also held leadership roles in energy policy initiatives and education reform. Post-legislative, Armstrong has engaged in roles related to energy services, renewable energy development, and faith-based drug rehabilitation efforts.

Gibson C. Armstrong combines a military background with a focus on economic pragmatism and environmental stewardship, often surprising his peers with unexpected alliances. His legislative record shows a calculated approach to balancing industrial interests with environmental concerns, hinting at a nuanced understanding of regional economic dynamics. Armstrong's involvement in faith-based initiatives, particularly drug rehabilitation, adds a layer of moral conviction to his policymaking, revealing a multifaceted ideological approach.