I'm pretty sure they didn't although as far as I know there weren't any restrictions on gun ownership at the time either in America or Britain.It was about being able to raise a local defence force if it proved necessary.The word "militia" is used generally to mean an official reserve force consisting of citizens rather than soldiers.
A very good post, IMO.
I more or less tried to type the same thing in another thread (though I think you phrased it better then I did) - and I got ambushed by some; so be warned (lol).