Carte de visite photograph.(4 1/4"x 2 1 /2") Waist up view. No imprint. Image to edges of mount (trimmed from a larger cabinet card?) 
Henry Wadsworth Longfellow (1807-82). Was the favorite American poet in the 19th century was He was a storyteller in verse. 'The Courtship of Miles Standish' (1858), 'Evangeline' (1847), and 'The Song of Hiawatha' (1855) use native incident and character. Longfellow was trying to give the United States legends like those of Europe. 
Strong clarity and contrast, VG cond.