Margaret Longstreth, exhibited at the National Academy of Design (1900), the New York Water Color Club, and the Society of Independent Artists (1917) in New York; the Art Institute of Chicago; the Boston Art Club (1905-6); and the Corcoran Gallery of Art in Washington, D.C. (1907). She exhibited in the Annuals of the Pennsylvania Academy of the Fine Arts in Philadelphia between 1894 and 1905, giving addresses in Boston (1894), Philadelphia (1895), and New York (1896-1901).