Also an archer - re-enactment Longbow. Also UK & I think you're US Don? So I may not be quite as much use, but I'll answer any questions I can.

First piece of advice would be to find a local club if you can. They should have some sort of beginner's course & training bows to loan, so you & your son can get some idea of whether this is something you really want to pursue before spending serious money on it. Archery is not necessarily the cheapest hobby in the world!

www.gnas.org is the page for the UK governing body - they've got links for archery orgs world-wide, so that may help you track something down.

Have fun!