From: Dictionary of American Fighting Ships
A former name retained.
(SP - 585: dp. 37; l. 64'; b. 13'6"; dr. 3'3"; s. 10 k., a. 1 1-pdr.)
Helianthus, a motor boat, was built by Herreshoff Manufacturing Co., Bristol, R.I., in 1912, and acquired by the Navy from N. A. Herreshoff; delivered 11 June 1917 and commissioned 6 July 1917, Boatswain T. H. Rich in command.
Helianthus was assigned to the 2d Naval District as a section patrol craft, and operated on Harbor Patrol and Harbor Entrance Patrol in Narragansett Bay and Newport, R.I. She was transferred 28 March 1919 to the Coast and Geodetic Survey.
Transcribed by Yves HUBERT (firstname.lastname@example.org)