From: Dictionary of American Fighting Ships
Dianthus
A genus of plants of the pink family.
(SP: l. 65'; b. 17'4"; dr. 2'9"; s. 12 k.; cpl. 16; a. 1 3-pdr., 1 1-pdr.) Dianthus (No. 639), a motor boat, was free-leased to the Navy, and commissioned on 26 May 1917, Ensign J. J. Banner, USNRF, in command. Dianthus was assigned to the 4th Naval District where she performed patrol duty throughout the war. She was placed out of commission on 27 November 1918 and returned to her owner.Transcribed by Yves HUBERT (hubertypc@aol.fr)