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.

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.

On 24 September 1940, she sailed from Key West for Halifax, Nova Scotia, where she was decommissioned 23 October 1940, and transferred to the Royal Navy in the land bases for destroyers exchange.

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.