She was laid down on 7 August 1944 at Wilmington, Los Angeles, by the California Shipbuilding Corporation under a United States Maritime Commission contract (MCV hull 51); launched on 28 October 1944; sponsored by Mrs. Donald F. Stace; delivered to the Navy on 17 December 1944; and commissioned on 17 December 1944.

For two months, Bosque visited various ports on the west coast before departing Portland, Oregon, on 18 February 1945 bound for the Hawaiian Islands.

On several occasions, her antiaircraft battery opened fire, and she claimed to have splashed a "Frances" medium bomber on the night of the 28th.

She made brief stops at Eniwetok and Ulithi and arrived in San Pedro Bay, Leyte, on 23 June.

She arrived in Tokyo Bay on 2 September, the day the formal surrender document was signed on board USS Missouri (BB-63).

She arrived at San Pedro Bay, Leyte, on 11 September and, for the next two weeks, visited several Philippine ports.

She was berthed in the James River, Virginia as part of the Maritime Commission's National Defense Reserve Fleet.

This article incorporates text from the public domain Dictionary of American Naval Fighting Ships.