George M. Miller art links 

George M. Miller at the National Gallery of Art, Washington D.C.
William Henry Vining, ca.1810

Philadelphia Museum of Art
(Tip: On the zoom-in page, use the slider bar to magnify the image)

 
National Art Databases and Museum Inventories:

Smithsonian Institution Art Inventories
List of works nationwide from two sources: the Inventory of American Paintings Executed before 1914 and the Inventory of American Sculpture (only a few percent of listings have an accompanying image)