When I started leaving comments on other blogs, I found there was already a Chris (my real name) so I had to think of a pseudonym quickly. Deacon Barry seemed appropriate for a skeptical blog (I think it was Mike the Mad Biologist), notice the irony of using a religious title when I am a skeptical athiest, which I hope will be the general flavour of this blog.
I am Scottish. Deacon Brodie and Deacon Blue are both Scottish, which is also appropriate.
For those of you who speak scots, you will have realised that Deacon Barry has a homophonic double meaning. To deek means to look, and barry is a variant of braw, which means good. Hence deekin' barry - looking good!