PCS-1457, planned as PC-1457, was reclassified PCS in April 1943 and laid down by Ballard Marine Railway Company, Seattle, Washington on 23 May 1943.

[1][2] The vessel was launched on 6 September 1943 sponsored by Miss Patricia McQuire and on 26 February 1944 commissioned as USS PCS-1457 sailing for the Pacific war zone after shakedown and training.

[3] PCS-1457 supported the recapture of the Marianas, specifically Guam and Tinian landings with surveys before and after the invasion.

[6] On 20 March 1945, PCS-1457 was reclassified as a Hydrographic Survey Ship (AGS-10) and four days later was renamed John Blish.

[1] The ship earned 4 battle stars for World War II service.