The second USS Willoughby (AGP-9) was a motor torpedo boat tender that served in the United States Navy from 1944 to 1946, seeing service in the later stages of World War II. Transferred to the United States Coast Guard in 1946, she was in commission as the cutter USCGC Gresham (WAVP-387), later WHEC-387 and WAGW-387, from 1947 to 1969 and from 1970 to 1973, seeing service in the Vietnam War during her Coast Guard career.

Construction and commissioning

Willoughby was laid down as a [[Barnegat class seaplane tender|Barnegat-class]] small seaplane tender designated AVP-57 on 15 March 1943 at Houghton, Washington, by Lake Washington Shipyards. She was reclassified as a motor torpedo boat tender and redesignated AGP-9 on 11 May 1943. Launched on 21 August 1943, sponsored by Mrs. D. R. Lee, she was commissioned on 18 June 1944.

USS Willoughby (AGP-9)

United States Navy service

World War II

After fitting out and undergoing sea trials, Willoughby conducted her shakedown out of San Diego, California, from 9 July 1944 to 4 August 1944, exercising in antisubmarine warfare operations and antiaircraft and gunnery drills and running further speed trials. Following a post-shakedown periods in the shipyard at Terminal Island, California, from 5 August 1944 to 11 August 1944, Willoughby shifted to San Francisco, California, where she loaded stores before getting underway on 15 August 1944, bound for Funafuti in the Ellice Islands.

USS Willoughby (AGP-9)

While she was en route, her destination was changed to Manus Island in the Admiralty Islands. Willoughby fueled and took on stores at Tulagi in the Solomon Islands on 1 September 1944 before she reached her destination, Seeadler Harbor, Manus, on 6 September 1944. Her stay there proved brief, however, for she got underway that day, bound for the Padaido Islands.

USS Willoughby (AGP-9)

The voyage to Mios Woendi proved eventful, as Willoughby picked up a sound contact on sonar at 1335 hours on 7 September 1944, distance . Going to general quarters, the ship commenced a run on what, after the executive officer had reported seeing a torpedo wake pass the ship, she believed to be a submarine. At 1342 hours, Willoughby dropped four depth charges and, although she lost contact with the submarine, continued her search of the area. Regaining a slight sound contact at 1512 hours, Willoughby made another run but did not drop depth charges. The ship secured from general quarters at 1632 hours, resumed her voyage, and arrived at Mios Woendi on 8 September 1944.

New Guinea campaignWilloughby tended patrol torpedo boats (PT boats) at Mios Woendi from 9 September 1944 to 12 October 1944. During that time, the New Guinea campaign was gradually coming to an end; PT boats operating from Mios Woendi were finding slimmer pickings to choose from in regard to Japanese barge traffic. All combat patrols from Mios Woendi finally ceased on 16 November 1944 when the Japanese evacuation from New Guinea had been completed.

Philippines campaign

The Leyte campaign beginsWilloughby was part of the burgeoning force of PT boats and their tenders that had grown as the World War II in the Southwest Pacific had progressed. So significant had been the role of PT boats in the island-hopping campaigns that they were slated to take part in supporting the initial landings in the Philippine Islands. Moving the motor torpedo boats from New Guinea to the Philippines, however, presented a problem.

Commander Selman S. Bowling, commanding Motor Torpedo Boat Squadron (MTBRon) 21, considered the voyage too long to be made "in one hop, even if escorted by tenders." The margin of safety for the ships to operate with, once they arrived in the objective area after the long voyage, was deemed unacceptable. Fuel was critical.

Ultimately, the decision was made to route the boats via the recently secured Palau Islands, sending them along with their tenders. Willoughby made up part of this significant movement—described as "the largest and longest mass movement of PT's under their own power during the war"—that began on 13 October 1944, at Mios Woendi.

On that day, Willoughby, in company with motor torpedo boat tenders USS Oyster Bay (AGP-6) (Commander Bowling's flagship) and USS Wachapreague (AGP-8), seaplane tender USS Half Moon (AVP-26), two United States Army craft, and 45 PT boats, sailed for the Palaus on the first leg of their monumental voyage of 1,200 nautical miles (2,222 kilometers). At Naval Base Kossol Roads, the PT boats fueled from the tenders, while the tenders in turn fueled from accompanying oilers. On the second leg of the trip, the PT boats fueled at sea from the tenders, a difficult task but a necessary one if the PT boats were to arrive off Leyte with their fuel tanks full and ready to go.