From: Dictionary of American Naval Fighting Ships
Concise (AMc-140) was reclassified AM-163, 21 February 1942; launched 6 February 1943 by Willamette Iron and Steel Corp., Portland, Oreg.; and commissioned 25 April 1944, Lieutenant H. J. Ullmann, Jr., USNR, in command.
Sailing from San Francisco 3 July 1944 for Pearl Harbor, Concise arrived 13 July for training. She swept mines at French Frigate Shoals from 6 to 16 August then sailed to Eniwetok, arriving 28 September. Assigned to convoy escort duty until 11 August 1945 Concise arrived off Okinawa, 30 August. On 8 September she sailed to clear mines from Japanese waters in protection of occupation shipping, sweeping off Wakayama, Osaka, and Nagoya until 20 November. Concise returned to San Francisco 16 December 1945 and was placed out of commission in reserve 31 May 1946 at San Diego. She was reclassified MSF-163 on 7 February 1955.
Concise received one battle star for World War II service.