(2000) The Union Image: Popular Prints of the Civil War North (The University of North Carolina Press.) Lewis, R. W. B.; Nancy Lewis (2001) American Characters: Selections from the National Portrait Gallery (Yale University Press, 1999) Related Reading Bricka, Carl Frederik (2001) Dansk biografisk lexikon, tillige omfattende Norge for tidsrummet 1537 – 1814: Bind 7 (Adamant Media Corporation) (In Danish) External links Grant and His Generals (National Portrait Gallery, Smithsonian Institution) John Brown (National Portrait Gallery, Smithsonian Institution) 1823 births 1906 deaths 19th-century Norwegian painters 19th-century Norwegian male artists 20th-century Norwegian painters Norwegian male painters Norwegian expatriates in Germany Norwegian expatriates in Denmark Norwegian emigrants to the United States Union Army officers 19th-century American painters American male painters Artists from Oslo 20th-century American painters Norwegian portrait painters 20th-century Norwegian male artists Royal Danish Academy of Fine Arts alumni 19th-century American male artists 20th-century American male artists