Gabriella, this is the story as I understand it. The elderly gentleman, Tony, was an 8 year old boy when the plane crashed. He has carried guilt for many years because he feels in some way responsible for the deaths of the airmen because the airmen were, he thought, waving at him and his pals, when in fact they were trying to get them out of the way so they could crash land the plane in the park, as the plane had got hit on its return from a raid. It seems that after failing to get the boys to realise, they managed to divert the plane away from the boys to save the boys lives, but this resulted in it crashing into nearby trees. When he was older, he realised what the airmen's waving really meant, i.e., they were trying to get the boys to get out of the way, and has carried the guilt of their deaths with him ever since, feeling it is his fault that they died because he and his pals didn't get out of the way. He created a small memorial to them, and has been tending it for many years, and one day whilst he was tending it, Dan (surname escapes me, who co presents Good morning Britain), was passing by and Tony explained why he was there, and how he would love to be able to afford a flagpole as a fitting memorial for the airmen. Dan took his story to heart and contacted the American airbase and it all happened from there, including a fly past in their honour.
Tony has met relatives of some of the airmen, and they tell him he must not feel guilty, but bless him, he does, and probably will to his dying day. He has requested that his ashes be scattered by the memorial. He views these airmen as family.