The USS Yarrow (SP-1010) was a wooden-hulled motorboat constructed in 1913 by Kargard in Chicago, Illinois. Originally a private vessel, Yarrow was designed as a small, motor-powered craft suitable for inland waters. Its dimensions and specific technical details are not provided in the source, but as a private motorboat of that era, it would have been modest in size, optimized for agility and ease of operation on Lake Michigan. In 1917, as the United States prepared for involvement in World War I, the Navy acquired Yarrow from her owner, K. D. Clark, under a free lease. She was commissioned into naval service on July 27, 1917, as USS Yarrow (SP-1010). The vessel was assigned to the 9th Naval District, where she served primarily as a section patrol boat. Throughout the 1917 and 1918 shipping seasons, USS Yarrow patrolled the waters of Lake Michigan. Her duties included monitoring maritime traffic and ensuring the security of the Great Lakes during wartime, a critical task given the strategic importance of the region for transportation and supply routes. During the winter months of 1917-1918, when the lakes froze over, Yarrow was laid up and not in active service. She resumed her patrol duties in the spring of 1918 and continued until late in the year. Following the end of World War I, the Navy returned Yarrow to her owner, K. D. Clark, on March 7, 1919. The same day, she was officially stricken from the Naval Vessel Register, ending her brief but notable service as a patrol vessel during the wartime period. Her service exemplifies the utilization of private vessels by the U.S. Navy to bolster coastal and inland water defenses during critical periods of conflict.

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