Just run the photo past the eye of a real expert on age (ie a teenager, they always know) and asked if it was a young or old person. "Old." was the definite verdict, "Very old." - so, over 50 then? And I think I can see middle-aged spread about the rear. I see what you mean about the flat hats, but it is actually quite an odd piece of headgear viewed from the rear. I don't think it is anyone significant.