I have to admit it. I missed it on the first research go-round. We have an even fifty, now. Five jails, fifty escapes, over 174 years. Those are nice numbers. Let's stick with those.
I am a realist however, and as I finish reviewing things in preparation of the book related to those escapes, I am keeping a keen eye out for any others I may have overlooked. I'll come back and post an update if I find any.