And therefor there's no doubt as to the paternity of Mark!
But frankly, 'David is quite another matter IMO.
I'm beginning to think...that 'David' isn't 'David' -'David' is a body with someone elses head...some kid that looks a little polynesian...but the clothes suggest the original photograph may have been taken in Kenya. The majority of the Kenya population - even today - buy their clothes from the market, the clothes come from various charities...
alternatively, can anyone see a resemblance to zero? Would YOU mistake one for the other in the street?