She helped found MoMA and pioneered the promotion of work of American and French modern artists at the turn of the 20th century, but until now, her life and legacy remain woefully under examined. An early pioneer and patron of French and American modernism, Lillie P. Bliss (1864-1931) was one of three female cofounders of MoMA in 1929, and went on to furnish the museum with one of the finest co…