From Dictionary of American Naval Fighting Ships,
Vol. III (1977), pp 134
Rivers in Louisiana, Michigan, Iowa, Missouri, South Dakota; formerly the name of the Colorado River from its source to its junction with the Green River in southeastern Utah.
(LSMR-505: dp. 790; l. 206'3"; b. 34'6"; dr. 7'2"; s. 13 k., cpl. 138, a. 1 5", 4 40mm., 8 20mm., 4 4.2" m., 10 rkt.; cl. LSMR-401)
Grand River (LSMR-505) was laid down as LSMR-505 on 31 March 1945 by Brown Shipbuilding Co., Inc., Houston, Tex., launched 28 April 1945, and commissioned 14 June 1945, Lt. Hall B. Wessinger in command.
After shakedown along the East Coast, LSMR-505 departed Portsmouth, Va., 7 August for duty in the Pacific. As World War II came to an end, LSMR-505 was assigned to Squadron 3 operating along the West Coast. Based at San Diego, she engaged in training exercises off California until March 1946. Arriving Astoria, Oreg., 22 March, LSMR-505 reported for duty in an inactive status. She decommissioned 20 May 1946 and entered the Pacific Reserve Fleet. While berthed in the Columbia River Reserve Group, she was named Grand River 1 October 1956. Her name was struck from the Navy List 1 October 1958.