USS Barr (DE-576/APD-39), originally a Buckley-class destroyer escort, and later a Charles Lawrence-class fast transport of the United States Navy named for Pvt.

She operated as part of a hunter-killer group built around the escort carrier Block Island (CVE-21) and also composed of Ahrens (DE-575), Eugene E. Elmore (DE-686), and Buckley (DE-51).

Eugene E. Elmore took Barr's injured and about half of her crew on board, hooked up a towline to the damaged escort and began the journey to Casablanca, French Morocco.

After a brief stop in Bermuda to avoid a major tropical storm, the ships arrived at the Boston Navy Yard on 25 July.

After transiting the Panama Canal and stopping in San Francisco to load more cargo, she and Cecil (APA-96) sailed westward and arrived at Pearl Harbor on 9 December.

From late January to early February, the fast transport loaded supplies, made repairs, and took part in demolition and reconnaissance training on reefs east of Ulithi.

The next morning, following intense shelling by fire support ships and aircraft, the fast transports approached the eastern beaches for reconnaissance by the UDTs.

Then, until 3 March, the high speed transport took screening station at night and anchored during the day while UDTs worked with the beachmasters to remove underwater obstacles.

During the next four days, Barr put UDT 13 ashore on Keise Shima, a group of small sand and coral islands between Kerama Retto and Okinawa, to gather information and blast passages through the reef for the LSTs.

The fast transport remained off the Hagushi anchorage providing anti-air and anti-submarine defense until 27 May, when she headed for Saipan as a convoy escort.

After the evacuation was completed, Barr made one mail run to Iwo Jima between 24 and 28 September and then remained in port at Tokyo until 12 October, when she was ordered to Nagasaki for duty with the U.S. Strategic Bombing Survey.

The transport arrived at San Diego on 19 December and, after voyage repairs, continued on to the east coast where she was placed out of commission, in reserve, at Green Cove Springs, Florida, on 12 July 1946.