Additional
Information: USS South Dakota (BB-49) was never commissioned because of the Washington Treaty for the Limitations of Naval Armaments. The unfinished hull was sold for scrap 25 Oct 1923. USS South Dakota (BB-57) was commissioned in 1942.
USS South Dakota Sites:
Naval Historical Center Naval Historical Center: BB-57 history and annotated images. (USS South Dakota) http://www.history.navy.mil/photos/sh-usn/usnsh-s/bb57.htm
USS South Dakota (BB-57) USS South Dakota (BB-57): Ship history and images, crew stories, and information about reunions and the memorial. (USS South Dakota) http://members.aol.com/ussdakota/ussdakota.htm
NavSource Online NavSource Online: BB-57 facts and annotated images. (USS South Dakota) http://www.navsource.org/archives/01/57.htm
Great White Fleet Great White Fleet: BB-49 history, specifications, and images. (USS South Dakota) http://www.greatwhitefleet.org/southdakota/02/history.html
U.S. Navy Battleships U.S. Navy Battleships: USS South Dakota (BB 57) facts, history, and images. (USS South Dakota) http://www.chinfo.navy.mil/navpalib/ships/battleships/sdakota/bb57-sd.html