Horace Pippin
African American Folk Artist
(1888-1946)

Butler Institute of American Art, Ohio
Zachariah, 1943
National Gallery of Art, Washington D.C.
Interior, 1944
Allen Art Museum at Oberlin College, Ohio
Harmonizing
Museum Fine Arts, Boston (the pic doesn't show, but there is good info, so get the pic off another site)
Philadelphia Museum of Art
3 works by Horace Pippin online
Museum Syndicate (lots of art, but no info)