Based on the Coast Guard Historian’s timeline, https://www.history.uscg.mil/research/chronology/
With inspiration from Mike Kelso

May 19

1846  Secretary of Treasury Walker assigned Revenue Captain John A. Webster to control movements of vessels assigned to Army and to cooperate with the Navy in the War with Mexico.

U.S.R.C. Gresham, flagship of the patrol fleet, America’s Cup races, 1901, Library of Congress.

1896  Congress authorized the Secretary of Treasury to patrol regattas.

U.S.R.C. Onondaga, America’s Cup races, 1901. Library of Congress.

1921  Congress passed the “Emergency Immigration Act of 1921” (ch. 8, 42 Stat. 5), a quota law that limited the number of migrants in any year to three percent of the number of residents from that country already residing in the U.S. as of 1910.