A watercolour by William Turner

I saw this watercolour float past and was fascinated by the weird behaviour of the people in the foreground, so I looked them up, but was unable to find anything about them but something that described them as ‘boys playing’.  The one on the left in the orange jacket looks so  20th century! 

I did however, in the course of my researches, find this awesome article about what Ruskin really said about Kirby Lonsdale. He seems to have had Very Stern Views.