A commenter called nicola70, responding to my overture here,
recommended the "South East London blogzine" Transpontine, where I discover that...
This Thursday (11th September) at South East London Folklore Society, Paul Cowdell will be talking on "Rats, London, and Folklore: You're how far from a rat?". He says: "I'll talk about my research into urban beliefs about rats and previously-recorded folklore about rats as well as the natural history of rats and their environments. I'll look at how rats are used to represent the Other, and how beliefs about rats change from rural to urban settings. What distinguishes London's ratlore from that of other cities, and what it might tell us about Londoners' attitude to their home."
I wish I could be there. Read on for details of the event and others.