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

March 19

1943  British Steamer Svend Foyne was a victim of an iceberg collision off the southern tip of Greenland.  One hundred forty-five persons were rescued by the Coast Guard and others.  The International Ice Patrol was suspended during this period (1942-1945) of World War II.

Coast Guard manned Destroyer Escort USS Menges, after hit by  a German Acoustic Homing Torpedo, May, 1944

1945  The first all-Coast Guard hunter-killer group ever established during the war searched for a reported German U-boat near Sable Island.  The group was made up of the Coast Guard-manned destroyer escorts USS Lowe, Menges, Mosley, and Pride, and was under the overall command of CDR R. H. French, USCG.  He flew his pennant from Pride.  Off Sable Island the warships located, attacked, and sank the U-866 with the loss of all hands.  Interestingly, the Menges had been a victim of a German acoustic torpedo during escort-of-convoy operations in the Mediterranean in 1944.  The torpedo had detonated directly under her stern, causing major damage and casualties, but she remained afloat.  She was later towed to port and the stern of another destroyer escort, one that had been damaged well forward, was welded onto the Menges.  She then returned to action.

USS Pride (DE-323), Coast Guard manned destroyer escort

Appearing very different from its last Greenland visit in 1884, the USS Bear returned in 1944. Unlike in 1884, the Bear relied on a Coast Guard crew during World War II. As part of the Greenland Patrol, it cruised Greenland’s waters and, in October 1941, brought home the German trawler Buskø, the first enemy vessel captured by the U.S. in WWII. (Coast Guard photo)

1963  The famous cutter Bear sank off the coast of Nova Scotia on this date while under tow from Halifax to Philadelphia were she as slated to be “put out to pasture” as a floating museum-restaurant.  The two men who were aboard the old cutter were rescued after a Coast Guard aircraft dropped a raft to the accompanying tug.

1989  M/V Aoyagi Maru ran aground on a reef in Lost Harbor, Alaska.  USCGC Rush rescued the crew of 19. She was declared a total loss after being gutted by fire when 1,200 pounds of explosives were ignited to burn off the 100,000 gallons of fuel left aboard and her cargo of 74,000 pounds of rotting cod.