This thread has been merged from two earlier threads so posts may overlap. However in the interests of accessibility, it was worth merging these.
The above montage of images was published in, I think, The Graphic magazine. The uncertainty stems from the fact that this is a page cut from a magazine and the only clue is a pencilled 'c1907'. Well, if the perpetrator of the magazine vandalism had written the issue date on the sheet, the guess would not have been needed. The only clues are that the Eton boys are at school so it is term-time, and that it was 'last Saturday'!
We know of other flood years, in particular 1894 and 1912 so this could be either. Publishing dates of The Graphic might help. I.e. was it being published in 1894 and printing real photographs regularly (Illustrated London News was not for example) or is it 1912?
The RWWS article about the Floods of 1947 is here. An article about The Floods in Victorian Times is here.