Hello, Elle!
Well, if you as a Londonish resident did not know about the Brixton clink, how am I supposed to have heard of it!
I had a book once about London murders, and there was a lot about Pentonville and Wandsworth.
They did the executions. One for North of the Thames and the other one for South of the river.
Don't know which was which, though!
Well done, the cooker lads!
And I have given you a start, inadvertently, with The Times crossword!