John Thaw why did he walk with a limp?

I think you got the wrong cowpoke. I never saw Wayne amble about in anything but a confident, he-man fashion. Hopalong Cassidy ( William Boyd) may have had a limp which inspired the name, which could also mean something like a Gadabout or travelling cowboy. Gadabout Gaddis was a fishing writer and columnist- and more or less the founder of the Bermuda Triangle.