Photo #: NH 91416
Rear Admiral David Dixon Porter, USN,
Commander, North Atlantic Blockading Squadron.
On the main deck of his flagship, USS Malvern, circa late 1864, leaning on a heavy 12-pounder Dahlgren smooth-bore howitzer that is mounted on a slide carriage.
Photographed by Alexander Gardner.
The original is an albumen silver print.
This photograph was used as the basis for an engraving published in Harper's Weekly, 21 January 1865. See Photo # NH 47392.
Courtesy of the Naval Historical Foundation.
U.S. Naval Historical Center Photograph.
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Originally posted 31 October 1998
Rescanned and reposted 3 July 2002