A confederacy of Algonquian tribes along the Merrimac River in New Hampshire and Massachusetts.
(YT–6: dp. 230; l. 92’6”; b. 21’1”; dr. 9’; s. 12 k.)
The first Penacook (YT–6) was laid down 8 February 1898 by the New York Navy Yard; and launched 29 October 1898.
Assigned to the 1st Naval District, Penacook enjoyed a long career as yard tug for the Naval Station, Portsmouth, N.H. In her later service, she operated as YT–6. She was reclassified YTM–6 on 15 May 1944. In September 1945, she was marked for disposal. She was sold 12 August 1947.