 Wainwright moved to Boston on 22 May and remained there until 27 July when she got underway for the Connecticut coast . She reached New London , two days later ; and , on the 30th , she was commissioned by the Coast Guard . The warship retained her name while serving with the Coast Guard 's " Rum Patrol " to suppress the illegal importation of alcoholic beverages . She served at New London from the summer of 1926 until 1929 . On 4 January 1929 , she headed south to Charleston , South Carolina , whence she conducted gunnery practice until 4 February when she returned north to Boston . In January 1930 , she headed south again for gunnery practice but this time at St. Petersburg , Florida . During each of the two succeeding years — in January 1931 and late in March 1932 — she returned to St. Petersburg for a month of target practice and afterward resumed her duties along the New England coast . 
