Thanks everyone for help. I thought 59 was a common one found just about everywhere in ponds and sounds like a job description on a river. Am I wrong? I better look again.
Yes, furrypusscat, I was right. I'd just guessed it but now I've double-checked. Still can't find the deaf black cat though no 60, is it anything to do with a guy called Maron?
I've found an article from The Wiltshire Times about a cat (5 letters) that belongs to the Peacock family - a bit iffy, but short of anything else ....