From Wikipedia:
USS Maratanza (1862) was a steamer acquired by the Union Navy during the American Civil War. She was used by the Union Navy as a gunboat to patrol navigable waterways of the Confederacy to prevent the South from trading with other countries.
Double-ender, wooden steamer Maratanza, built at Boston Navy Yard in 1861, was launched 26 November and commissioned at Boston, Massachusetts, 12 April 1862, Comdr. G. H. Scott in command.
From Library of Congress:
Photographed by James F. Gibson
Photographs of the Federal Navy, and seaborne expeditions against the Atlantic Coast of the Confederacy
Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA
Record page for this image: http://www.loc.gov/pictures/item/cwp2003000709/PP/
