From: Dictionary of American Naval Fighting Ships
YNT-21: (11). 112: l. 83': b. 18'7"; dr. 9'; s. 11 k.
Marin (YNT-21) was built as Pacific by Harbor Boat Works, San Pedro, Calif., in 1929; purchased by the Navy 14 November 1940 from Sam Bracco & Associates; converted and placed in service 8 March 1941 at San Diego, Calif., as Marin (YN-53), Lt. (jg.) V. H. Craig in command.
Completing sea trials, Marin was taken in tow by Sabine and entered Pearl Harbor 22 April 1941. She tended nets in the 14th Naval District throughout World War II. A classification change redesignated Marin to YNT-21 on 8 April 1942.
Transcribed by: Bill Mozingo, email@example.com