 All six ships operated in the Atlantic or Caribbean until the U.S. entrance into World War I in April 1917 , when all six were sent overseas to Queenstown , Ireland , for convoy escort duties . Several of the ships rescued passengers and crew from ships sunk by U @-@ boats , and several had encounters with U @-@ boats themselves ; Nicholson helped sink U @-@ 58 in November 1917 , the first U @-@ boat sunk by the U.S. Navy . All six members of the class had returned to the United States in January 1919 and were decommissioned by June 1922 . In 1924 , two of the six — Ericsson and McDougal — were commissioned into the United States Coast Guard to help enforce Prohibition as a part of the " Rum Patrol " . They were returned to U.S. Navy custody in 1932 and 1933 , respectively . All six ships had been sold for scrapping by June 1936 . 
 All six ships operated in the Atlantic or Caribbean until the U.S. entrance into World War I in April 1917 , when all six <a href='uninflect' title='1'><mark>were</mark></a> sent overseas to Queenstown , Ireland , for convoy escort duties . Several of the ships rescued passengers and crew from ships sunk by U @-@ boats , and several had encounters with U @-@ boats themselves ; Nicholson helped sink U @-@ 58 in November 1917 , the first U @-@ boat sunk by the U.S. Navy . All six members of the class <a href='been_done' title='2'><mark>had</mark></a> returned to the United States in January 1919 and <a href='uninflect' title='3'><mark>were</mark></a> decommissioned by June 1922 . In 1924 , two of the six — Ericsson and McDougal — <a href='uninflect' title='4'><mark>were</mark></a> commissioned into the United States Coast Guard to help enforce Prohibition as a part of the " Rum Patrol " . They <a href='uninflect' title='5'><mark>were</mark></a> returned to U.S. Navy custody in 1932 and 1933 , respectively . All six ships <a href='been_done' title='6'><mark>had</mark></a> been sold for scrapping by June 1936 . 
All six ships operated in da Atlantic or Caribbean til tdaU.S. entrance into World War I in April 1917 , when all six was sent overseas to Queenstown , Ireland , fa convoy escort duties . Several of the ships rescued passengers and crew from ships sunk by U @-@ boats , and several had encounters with U @-@ boats themselves ; Nicholson helped sink U @-@ 58 in November 1917 , the first U @-@ boat sunk by thda.S. Navy . All six members of the class done returned to the United States in January 1919 and was decommissioned by June 1922 . In 1924 , 2 of the six — Ericsson and McDougal — was commissioned into the United States Coast Guard to help enforce Prohibition as a part of thedaRum Patrol " . They was returned to U.S. Navy custody in 1932 and 1933 , respectively . alll six ships done been sold ffascrapping by June 1936 .