Art history has occasionally lost sight of the importance of Jean-Baptiste-Armand Guillaumin's work to the development of Modern art and only recently has his work been acknowledged to the degree it deserves. Guillaumin was a founding member of the now famous group of independent young French painters who organized the first Impressionist exhibit in 1874. Guillaumin's revolutionary comrades included Claude Monet, Camille Pissarro, Auguste Renoir, Alfred Sisley, Edgar Degas, Paul Cezanne and Berthe Morisot. Guillaumin's work appeared at six of the eight Impressionist exhibitions between 1874 and 1886. He lived the longest of all the founders of Impressionism, dying just after Claude Monet in 1927.

Guillaumin b...