Gardener has it. Its Durham-Tees Valley, aka Teeside. Previously known as RAF Middleton St George.
The occasion was a BoB Display immediately after the end of WW2. Whereas I am sure you have identfied most if not all the aircraft, they are; Harvard, Spitfire XVI (567 Sq), Mustang III (61 OTU), Tempest II, Mosquito, Mitchell, 2 x Vickers Warwick, Horsa, Sea Otter, Sterling, Lancaster and a Wellington.
Well done Gardener, you have control....