Spring, 1949: Unit moves to Schenectady County Airport.
Fall, 1951: The 139th FS grew to about 350 men, including 35 pilots to fly the F-51s; the mission was Air Defense and Tactical Support.
1957: In November, the 139th Fighter Squadron is redesignated as an Air Tactical Flying Squadron and converts to tanker missions.
Jan. 18, 1960: 109th is on its way to the global transport business as the first C-97 arrives at Schenectady County Airport.
April 1971: Unit receives first C-130As, becoming the Tactical Airlift Group.
Summer, 1975: 109th TAG converted to C-130Ds, assuming responsibility for Volant DEW resupply mission on the Greenland ice cap.
1988: First trip to Antarctica. The unit provides airlift support to National Science Foundation's South Pole research program, augmenting the Navy VXE-6 program.
March 4, 1989: Base named Stratton Air National Guard Base in honor of retired 10-term Congressman Samuel S. Stratton of Schenectady.
1990-91: 109th AW members called to duty in support of Desert Shield/Desert Storm.
September 1994: 139th Aeromeds deploy to Rwanda in support of Operation Provide Support.
Feb. 20, 1998: Responsibility for airlift support to the United States Antarctic Program (USAP) was passed over to the 109th AW from VXE-6 during a ceremony in Christchurch, NZ.
October 1999: 109th AW aides in the rescue of Dr. Jerry Nielsen, a doctor with breast cancer symptoms and based at isolated Amusden-Scott Research Center in Antarctica.
Sept. 11, 2001: 109th provides immediate support after the World Trade Center is attacked. Nearly 50 civil engineers, services and public affairs personnel are deployed to Ground Zero within the first 24 hours. Since then, the 109th has continued to voluntarily deploy in support of military operations in Southwest Asia and around the world.
July 2007: A 109th C-130 and crews deploy to Afghanistan, marking the first time since Vietnam that aircraft from the unit flew their own aircraft in a combat theater of operations.
September 2008: Crews able to get C-130 fuselage onto C-5 Galaxy and transport to the base for training purposes.
Sept. 16, 2008: Crews take off for first time using 8-bladed props.
March 2012: A 109th C-130 and crews deploy to Afghanistan, marking the second combat AEF deployment for the unit.
Jan 2013: Unit celebrates 25th anniversary of continuous annual deployments to Antarctica in support of Operation DEEP FREEZE.
November 2023 The 75th anniversary of the unit being established