The USS Lady Mary (SP-212) was a United States Navy patrol vessel that served during World War I from 1917 to 1918. Originally constructed as a civilian yacht named Glenda in 1905 by George Lawley & Son in Boston, Massachusetts, she was owned by B. E. Niese of New York City and C. S. Smith of Stamford, Connecticut. At some point, the vessel was renamed Lady Mary before entering naval service. In July 1917, the U.S. Navy chartered the vessel to support wartime patrol operations. She was delivered to the Navy on July 21, 1917, and commissioned shortly thereafter at Newport, Rhode Island, on July 24, 1917, as USS Lady Mary (SP-212). Her primary role was within the 2nd Naval District, which covered the coastal waters around Newport. Her duties included serving as a dispatch boat—facilitating communication and transportation—and patrolling the waters of Block Island Sound, from Newport to Block Island, to safeguard the coastline and maritime traffic during the war. The vessel's service was relatively brief, ending in December 1918, just after the conclusion of World War I. She was returned to her former owners on December 9, 1918, marking the end of her naval service. The USS Lady Mary exemplifies the common practice during World War I of converting civilian vessels for military use to bolster naval patrol capabilities. Her service, though short, contributed to the coastal security efforts during a critical period of maritime conflict. Her construction as a yacht and subsequent conversion into a patrol vessel reflect the adaptable nature of maritime assets during wartime, serving both civilian and military needs in the early 20th century.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.