You can really get a sense of his humor from his website: "55 years ago I first used Occam's Razor. Since then I have used no other."
Why am I not surprised it was Richard Parkin?
Charles Lang, is of course, a good candidate for "Archimedes" but I'm suspecting it may be David Wheeler, an incredible polymath that seemed to be beyond the cutting edge on every frontier of computer science for his entire career.
Apparently (per a comment in the article) Parkins was a member of a group called the Archimedeans and "Archimedes" is a composite character representing questions asked or points raised by his fellow Archimedeans.
http://www.zen224037.zen.co.uk/