Hamilton sustained and developed the abstract approach to painting for the rest of her life. Today, her work is represented in the Birmingham Museum of Art in Alabama. Her oil on canvas work entitled, "Silent Space," which was completed c. 1969 is part of the collection belonging to Sarfaraz Aziz, who is the director of the brokerage firm of Aziz Fidahuesin & Company in London. Other pieces remain in public and private collections in Austria, France, Germany, India, Italy, Mexico, Pakistan, Switzerland and the United States.