Early Life and Commercial Work Jack Hamilton Bush (1909-1977) was a Canadian abstract painter who emerged as one of the foremost figures in Color Field painting and Post-painterly abstraction. Born in Toronto, Ontario, his formative years were marked by exposure to both urban sophistication and rural landscapes—influences that would permeate his artistic vision throughout his life. Bush’s father established Rapid Electro Type Company, where he began his professional career as a commercial illustrator at the age of 19, honing skills in graphic design alongside his passion for visual art. This…