High Quality Content by WIKIPEDIA articles! USS Vandivier (DER-540) was laid down at the Boston Navy Yard on 8 November 1943 as a John C. Butler-class destroyer escort DE-540; launched on 27 December 1943; and was sponsored by Mrs. Mary Hardin Vandivier. Since World War II came to an end before she was completed, work on her gradually tapered off and was finally suspended on 17 February 1947. Seven years later, on 1 July 1954, work was resumed to complete her and to convert her to a destroyer escort radar picket ship. She was redesignated DER-540 on 2 September 1954 and was placed in commission on 11 October 1955, with Lt. Comdr. Frank B. Correia in command.