USS Roncador on the Delaware River, with the Cramps Shipyard in the background, Philadelphia, PA, 1944.
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Image of a submarine at the shipyard.

Credit: Courtesy of the Pennsylvania State Archives

Founded in 1825, the William Cramp and Sons Shipbuilding Company of Philadelphia was a major iron shipbuilder for the U.S. Navy in the late 1800s and early 1900s. Closed in 1927, it was reopened by the Navy in 1940 to build cruisers and submarines. Cramps closed for the second and final time in 1947. Cramps launched the USS Roncador on May 14, 1944.

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