 Upon returning to the United State in December 1918 , Conyngham underwent repairs at the Boston Navy Yard . She remained there in reduced commission through 1921 , with only brief episodes of activity . After returning to active service for about a year , she was decommissioned in June 1922 . In June 1924 , Conyngham was transferred to the United States Coast Guard to help enforce Prohibition as a part of the " Rum Patrol " . She operated under the name USCGC Conyngham ( CG @-@ 2 ) until 1933 , when she was returned to the Navy . Later that year , the ship was renamed DD @-@ 58 to free the name Conyngham for another destroyer . She was sold for scrap in August 1934 . 
