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

November 19

CDR Frank Erickson, USCG, the first US Naval Aviation helicopter pilot.

1943  CG Air Station at Floyd Bennett Field, Brooklyn, New York, was designated as a helicopter training base.  The Coast Guard ran the training program during the war.

US Coast Guard photo, by PAC Dana Warr

1984  The Coast Guard accepted the new HH-65A Dolphin helicopter for service.

2008  CGC Vigorous returned to its homeport of Cape May, New Jersey, after “a productive 56-day deployment in the Caribbean Sea. . .Patrol highlights include law enforcement boardings, search and rescue operations as well as successfully completing Tailored Ship’s Training Availability.”