George K. Gillespie (1924–1995): A Pioneer of Color Field Painting George K. Gillespie (1924–1995) stands as a significant figure in the American Abstract Expressionist movement, particularly recognized for his distinctive approach to color field painting—a style characterized by expansive canvases dominated by unbroken areas of pigment. Born in Belfast, Ireland, Gillespie’s artistic journey began with formal training at Belfast Colle…