Born in Boston on October 19, 1919, he prepared for college at Boston English High School, graduated from Bangor Theological Seminary in 1946 and then attended Bowdoin for two years, graduating as a member of the Class of 1948. He was the minister of the Winthrop Congregational Church from 1943 to 1949, when he became minister of the Galewood Community Church in Chicago, IL. From 1956 until 1962, he was an associate minister of the First Congregational Church in Wauwatosa, WI, and, from 1962 to 1967, he was a minister of the First Congregational Church in Marshalltown, IA. He was the associate executive of the National Association of Congregational Churches in Oak Creek, WI, from 1967 to 1976 and served as its executive secretary from 1969 until 1976. In 1976, he became minister of the Congregational Church of Sun City, which he founded and with which he remained until 1986, when he retired. He earned his master of divinity degree from Bangor Theological Seminary in 1953, and received an honorary doctor of divinity degree from Piedmont College in Demorest, GA in 1970. He was one of the founders of the National Association of Congregational Christian Churches in 1955 and one of the founders of the International Congregational Fellowship, serving as co-chair of its first meeting, held in Chislehurst, England, in 1977. He was married in 1943 to Donna Eloise Estabrook, who died in 1995; and was married again to Lenore Gaile Dahlstrom, who survives him, as do a son, John K. Alexander; three daughters, Karen J. Hoffman, Samantha A. Monet, and Elizabeth A. Alexander; a brother, Fred Alexander; a sister, Mary Lakari; and two grandsons.