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

April 4

1912  President William Howard Taft recommended abolishing the Revenue Cutter Service.  Instead of elimination though, his actions led to the creation of the Coast Guard by consolidating the Revenue Cutter Service and the Life-Saving Service on January 28, 1915.

A Curtiss F9C-2 Sparrowhawk inside USS Akron (ZRS-4) hangar.

1933  The Navy airship USS Akron crashed near the Barnegat Lightship. The ensuing search and rescue efforts employed over 20 Coast Guard vessels and aircraft.

BMCM Thomas McAdams

1972  BMC (later BMCM) Thomas D. McAdams became the first Coast Guardsmen to receive the new Coxswain insignia.  Then-Commandant ADM Chester Bender presented the insignia to Chief McAdams at a ceremony at the Coast Guard’s Small Boat School in Ilwaco, Washington, where McAdams was the OIC.

1975  Four Coast Guard helicopters saved 36 crewmen from the 557-foot tanker Spartan Lady after the oil-laden vessel broke up in heavy seas 165 miles south-east of New York.  Two of the helicopters were from AIRSTA Brooklyn and two were from AIRSTA Cape Cod.

Janna Lambine, Cdr. USCG

1977  The Coast Guard designated its first female Coast Guard aviator, Janna Lambine.  She was Coast Guard Aviator #1812.