From: Dictionary of American Naval Fighting Ships

Bagaduce is a peninsula in Maine.

(AT-21: dp. 751; l. 156'8"; b. 30'; dr. 14'7"; s. 12.4 k.; cpl. 35; a. 2 3"; cl. Bagaduce)

Ammonoosuc (AT-21) was renamed Bagaduce 24 February 1919; launched 5 April 1919 by Ferguson Steel and Iron Co., Buffalo, N. Y.; and commissioned 18 September 1919, Lieutenant (junior grade) F. Mogridge in command.

Assigned to the 3d Naval District, Bagaduce operated at New York Navy Yard and along the coast of New England. In July 1926 she was on duty during the salvage of S-51 (SS-162) off Point Judith, R. I. Bagaduce was next assigned to the 7th Naval District and arrived at Key West, Fla., 2 August 1926. Between 26 April and 7 June 1927 she assisted in refugee and other disaster relief operations during the flood along the Mississippi River. She left Key West 11 July 1927 for Coco Solo, C. Z., where she operated with the Control Force at the Submarine Base until February 1929 when she returned to Key West. She continued routine operations until 20 April 1932 when she was decommissioned at Philadelphia.

Bagaduce was recommissioned at Philadelphia 22 June 1938 and assigned duty in the 11th Naval District, arriving at San Diego, Calif., 22 October 1938. She remained on duty in California waters through 1942. Following a voyage to Pearl Harbor early in 1943, she returned to San Francisco. She operated along the California coast until decommissioned 22 June 1946. Her classification was changed to ATO-21 on 14 May 1944. Bagaduce was transferred to the Maritime Commission 9 January 1947.