Charles Demuth
Charles Demuth (November 8, 1883 – October 23, 1935) was an Americanwatercolorist who turned to oils late in his career, developing a style of painting known as Precisionism.
Demuth was a lifelong resident of Lancaster, Pennsylvania. The home he shared with his mother is now the Demuth Museum, which showcases his work. He graduated from Franklin & Marshall Academy before studying at Drexel University and at Philadelphia's Pennsylvania Academy of Fine Arts. While he was a student at PAFA, he met William Carlos Williams at his boarding house. The two were fast friends and remained close for the rest of their lives.
He later studied at Académie Colarossi and Académie Julian in Paris, where he became a part of the avant garde art scene. The Parisian artistic community was accepting of Demuth's homosexuality.
(source: http://en.wikipedia.org/wiki/Charles_Demuth)