1945: CGC Magnolia sunk in a collision off Mobile Bay with the loss of 1 man.
1950: USHS Benevolence collided with Mary Luckenbach.  CGC Gresham and other vessels responded and 407 persons were saved.
1971: The Secretary of Transportation announced the awarding of a contract to the Lockheed Shipbuilding and Construction Company of Seattle, WA, "to build the world’s most powerful icebreaker for the US Coast Guard," Polar Star, the first of the Polar-Class of icebreakers.