2001Cape Ann Light Station (Thacher’s Island Twin Lights) was designated a National Historic LandmarkArts and Culture, Economy and Industry, Location and Setting, Buildings & Architecture, Maritime & Fishing Industry

The Tichnor Brothers Collection, Thatcher’s Island, Twin Lights, Gloucester, Mass., c. 1930-1945, Postcard, Boston Public Library, https://ark.digitalcommonwealth.org/ark:/50959/6d570075k
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“The Cape Ann Light Station is noted for some very significant firsts and lasts in the history of light stations in the United States. The original towers were the last to be built under British rule. The first light station to mark a “dangerous spot” along the coast, the ten prior colonial lighthouses simply marked harbor entrances. Crucially important in the early American coastal trade, the lights stand at a historically pivotal location where this country’s maritime transportation network to and from Europe, Canada, and the West Indies, all converged on Massachusetts Bay. The lights are also associated with specific events and reflect important advances in technology and engineering, especially in terms of illumination.”

National Register of Historic Places and National Historic Landmarks Program Records: Massachusetts. Cape Ann Light Station. https://catalog.archives.gov/id/63793707
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