After a training and outfitting period which included a maiden voyage to the Azores, Evans departed Newport, Rhode Island on 10 June 1919 for European waters, where she operated until 22 August, returning then to New York. She sailed once more on 11 September, and after patrolling off Central America, reached her assigned home port, San Diego, on 14 November.
Through the next two years, Evans joined in a training schedule which found her ranging the eastern Pacific from Valparaíso, Chile, to Astoria, Oregon. She was placed in reserve at San Diego 6 October 1921, and decommissioned on 29 May 1922. Recommissioned on 1 April 1930, she operated out of San Diego for six months, then was assigned to duty training members of the naval reserve out of New York City, where she arrived 6 December 1930. She returned to San Diego 26 March 1932, to sail with the Battle Fleet on training cruises and in exercises along the west coast and in Hawaiian and Alaskan waters.
Commissioned as HMS Mansfield, a Town-class destroyer, the destroyer had a truly international career, for between December 1940 and March 1942; she was on loan to the exiledRoyal Norwegian Navy. As HNoMS Mansfield, she raided a fish oil factory in German hands at Øksfjord near Hammerfest, Norway. Her landing party destroyed the factory's essential machinery, and attempted to capture the local quisling leader, but he escaped. With her Norwegian crew, she also served on escort duty in the North Atlantic, continuing in this vital assignment after she returned to the Royal Navy. Mansfield was modified for trade convoy escort service by removal of three of the original 4-inch/50-caliber guns and one of the triple torpedo tube mounts to reduce topside weight for additional depth charge stowage and installation of hedgehog.[1] In March 1942 she was transferred to the Royal Canadian Navy operationally, but never commissioned, and served with the Western Local Escort Force based at Halifax and St. John's. With newer escorts available, in November 1943 the veteran of service in four navies was reduced to care and maintenance service at Halifax, and on 22 June 1944 she was paid off (decommissioned).