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

April 27

The overcrowded decks of the paddle-wheeler Sultana just before her fiery explosion.

1865  The boilers on the 260-foot wooden-hulled steamboat Sultana exploded while the vessel was traveling on the Mississippi River near Memphis.  Sultana, although designed to carry a maximum of 376 passengers, actually embarked over 2,400, most of whom were Union prisoners of war recently released from captivity.  The explosion and consequent fire killed over 1,800 and ranks as the worst commercial maritime disaster in U.S. history.

USCGC Tampa (Coast Guard Cutter, 1912) photographed in harbor, prior to World War I. Completed in 1912 as the U.S. Revenue Cutter Miami, this ship was renamed Tampa in February 1916. On 26 September 1918, while operating in the English Channel, she was torpedoed and sunk by the German Submarine UB-91. All 131 persons on board Tampa were lost with her, the largest loss of life on any U.S. combat vessel during the First World War. U.S. Naval History and Heritage Command Photograph.

1914  USRC Miami, under the command of Captain J. H. Quinan, while on the International Ice Patrol, carried out the first trials of the new fathometer built by Submarine Signal Company in Boston.

USCG Sebago (WPG-42, later WHEC-42) as seen on 28 November 1947. She retained at least some of her original armament. Twin 5″/38 and quad 40mm guns are visible. As can be seen in the photo below, her after gun mounts and depth charges had been removed and a balloon shelter installed.

1949  When a C-47 of the Military Air Transport Service developed engine trouble and ditched near CGC Sebago on Weather Station “Dog” some 380 miles from Newfoundland, a motor self-bailing boat from the cutter immediately picked up the plane’s crew of four. Although the C-47 sank within 12 minutes, there were no injuries or casualties.

1966  After a U.S. Air Force B-57 was reported overdue the U.S. Coast Guard Eastern Area Commander commenced an intensive air search.  The two-day, large-scale, over-water search for the missing aircraft, all of which was coordinated by the Coast Guard, unfortunately yielded negative results.

1980  A Coast Guard HH-3F from AIRSTA Sitka safely rescued all 14 crewman from the F/V Cathy-R after it capsized and sank west of Cape Ommaney.

1989  President George H. W. Bush dedicated the Command, Control, Communications and Intelligence Center East, otherwise known as C3I, in south Florida.  The facility, manned by Coast Guard and Customs personnel, was designed to give law enforcement agencies instant access to air and marine smuggling information.

Coast Guard Cutter Hamilton leads the way for cutters Robert Goldman and Charles Moulthrope as they depart Puerto Rico April 1. National security cutter Hamilton is escorting the two fast response cutters (FRCs) across the Atlantic to Rota, Spain. From there, the FRCs will continue to their homeport of Manama, Bahrain. U.S. Coast Guard photo by Petty Officer 3rd Class Sydney Phoenix.

2021  CGC Hamilton transited into the Black Sea in support of NATO allies and partners.  Hamilton was the first Coast Guard cutter to enter the Black Sea since CGC Dallas (WHEC 716) did so in 2008. Hamilton’s patrol came after first escorting two Fast Response Cutters from Puerto Rico across the Atlantic on their way to service with U.S. Patrol Forces Southwest Asia. Hamilton then made two logistics visits to Rota, Spain and Naples, Italy before proceeding to the Black Sea.  Hamilton was conducting a routine deployment in the U.S. Sixth Fleet, working alongside Allies, building maritime domain awareness, and sharing best practices with partner nation navies and coast guards,” according to the Navy.

210502-G-G0108-1510 BLACK SEA (May 2, 2021) USCGC Hamilton (WMSL 753) and Georgian coast guard vessels Ochamchire (P 23) and Dioskuria (P 25) conduct underway maneuvers in the Black Sea, May 2, 2021. Hamilton is on a routine deployment in the U.S. Sixth Fleet area of operations in support of U.S. national interests and security in Europe and Africa. (U.S. Coast Guard courtesy photo)

210508-G-G0108-1205 BLACK SEA May 8, 2021, USCGC Hamilton (WMSL 753) and a Ukrainian coast guard vessel conduct underway maneuvers in the Black Sea, May 8, 2021. Hamilton is on a routine deployment in the U.S. Sixth Fleet area of operations in support of U.S. national interests and security in Europe and Africa. (U.S. Coast Guard courtesy photo)

USCGC Hamilton (WMSL-753) conducting port visit in Valletta, Malta on May 17, 2021. Coast Guard Photo