Born in Baltimore in 1936, the great-granddaughter of board game creator Milton Bradley, Treworgy studied with noted painters Joseph Nicoletti, Thomas Cornell, and Wolf Kahn, among others. After discovering the work of the American Precisionists in 1991, she further sharpened her geometric approach. Her work has been shown at numerous galleries, reviewed by critics Philip Isaacson and Pat Davidson Reef, and juried into three Portland Museum of Art biennials.