Born in Quincy, Massachusetts, Ronald Christensen established a fine-art career as a printmaker, painter and muralist in Boston where he had studied at the Boston Museum School of Fine Art and the Vesper George School of Art. He became a teacher in Color Theory at the New England School of Art in Boston in 1963. Exhibition venues included the National Academy of Design (1965) and the Rhode Island Art Festivals 1960-1963. Christensen has murals in Boston at the Celanese Corporation of America, Continental Can Company and the National Bank of Boston.