From: Dictionary of American Fighting Ships
Henry P. Williams
Henry P. Williams (SP-509) was a converted yacht which served as a minesweeping training craft and patrol boat 1917-18. Built as yacht Illawarra by Bath Iron Works, Bath, Maine, in 1896, she was originally taken into the Navy in 1898 as Oneida (q. v.).
Transcribed by Yves HUBERT (firstname.lastname@example.org)