This educational biography is a study of Alexander Campbell's (1788-1866) educational activities and educational thinking. These activities included the following: his creation of Buffalo Seminary; advocacy for common schools at the Virginia State Constitutional Convention of 1829-1830; participation in the Western Literary Institute and College of Professional Teachers of Cincinnati, Ohio (an organization for educators); speeches on education and common schools; founding Bethany College in present-day Bethany, West Virginia; and his discussion of educational issues in his journal, the Millennial Harbinger. The study explores how Campbell's unique early-life affected his future educational life. His early-life included intensive study under his highly educated father, home-training in Christian piety, and studying for a time at the University of Glasgow. The study focuses especially upon Campbell's involvement in the College of Teachers, his founding of Bethany College, and his major educational ideas. Some of Campbell's major educational emphases include: the need for public education; human knowledge as a national resource; moral education; lifelong learning; female education; student interest; a broad and holistic conception of education; a focus on early childhood education; utilitarian education; and the power of education. This study concludes that the overarching theme of education as power pervades Campbell's educational thinking.