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

City of Columbus and Revenue Cutter Dexter. Drawn by: Schell and Hogan from a sketch by an officer of the United States Revenue Cutter Dexter 1884.

1884  USRC Dexter, under the command of CAPT Eric Gabrielson, came to the aid of the stricken steamer City of Columbus after it had grounded on the Devil’s Bridge rock outcropping off Martha’s Vineyard.  The cutter maneuvered around the wreckage and launched its small boats to effect rescues.  Second LT John U. Rhodes, First LT Warrington D. Roath, Third LT Charles D. Kennedy, and volunteers from the cutter’s crew distinguished themselves in their rescue efforts.  They worked in concert with lifeboats from the Massachusetts Humane Society’s Gay Head station.  All told 29 passengers and crew were saved out of 132 aboard City of Columbus.  A local newspaper reported that the Dexter’s “…officers and crew, from the captain to the cabin boy, acted the part of heroes, both at the scene of the wreck and afterwards in caring for the survivors.”

USCGC Bibb before WWII

1938  CGC Bibb returned to Norfolk after a 10-day post-trial run from Norfolk to the Virgin Islands and back again with the Commandant, RADM Russell R. Waesche, aboard.  During the run Bibb went to the aid of the four-masted schooner Albert F. Paul, which had lost its topsails and was leaking badly.  The Paul was taken in tow and Bibb proceeded under reduced speed.  CGC Sebago was contacted by radio and relieved Bibb of the tow.  During the cruise, “constant communication was maintained between Bibb and Radio Station Fort Hunt, Virginia (NMH).”

No caption/date/photo number; photographer unknown. On ramp in preparation for launch, crew is running to the PBM; view is forward quarter, port side. Note beaching gear and anchor with hoist.

1953  A Coast Guard PBM seaplane crashed off the Chinese coast near Swatow, China during takeoff after having rescued 11 survivors from a ditched U.S. Navy aircraft that had been shot down by Chinese anti-aircraft fire.  A total of nine servicemen lost their lives in this second crash, including five of the Coast Guard aircrew.  The survivors were later rescued by the USS Halsey Powell (DD-686).  The entire Coast Guard PBM aircrew were awarded the Gold Lifesaving Medal for their actions.

1974  Coast Guard units rescued 61 crewmembers from the 551-foot tanker Keytrader and the 657-foot Norwegian freighter Baune after the two vessels collided on the night of January 18, 1974 in dense fog.  Sixteen other crewmembers did not survive.  Keytrader was carrying 18,000 tons of fuel oil.  A 53-foot Coast Guard vessel assisted in fighting the ensuing fire.

2003  On January 18^th, CGC Walnut departed from her homeport in Honolulu, Hawaii and began her 10,000 mile transit to the Persian Gulf in support of Operation Iraqi Freedom.  This 45-day transit was completed as quickly as possible with brief stops for fuel and food along the way in Guam, Singapore, and Kuwait.  The cutter deployed with an oil spill recovery system in the event the regime of Saddam Hussein committed any acts of environmental terrorism.  When those threats did not materialize, the cutter then conducted maritime interception operations enforcing U.N. Security Council resolutions, participated in the search for two downed United Kingdom helicopters, and patrolled and provided assistance to captured Iraqi offshore oil terminals being secured by Coast Guard port security personnel.   The cutter’s crew completely replaced 30 buoys and repaired an additional five along the 41-mile Khawr Abd Allah Waterway.  This ATON mission vastly improved the navigational safety of the waterway for humanitarian aid, commercial, and military vessels sailing to the port and was a critical step to economic recovery for the people of Iraq.