USS Algonquin, completed as El Toro in 1891 for the Southern Pacific Railroad's Morgan Line, was a small harbor tug commissioned by the United States Navy 2 April 1898. Renamed Accomac, after Accomac, Virginia, June 1898, renamed Nottoway in 1918 and, after the Navy adopted alphanumeric hull numbers on 17 July 1920, classified as YT-18, a district tug. On 5 October 1942 the name was cancelled and the tug was simply YT-18 until 1944 when classification was changed to YTL-18, a little harbor tug. Over the years as a Navy tug, from 1898 to 1946, the tug served from Cuba to Boston.