Obviously, Sovereign would have been around - but what about the other guys?
I've been thinking about British Heroes for the Golden Age for a while -
Tom Thunder - Created during a Lightning Storm and infused with all the power of British Weather.
The Lion and Unicorn - A husband and Wife Team of British Super-Soldiers.
Stonehenge -A young Archeologist who developed the ability to wear the Magical rocks of Stonehenge like a suit of rocky-armour that imbues him with Super Toughness and Super Strength.
Beyond a rough draft of powers & origins (and notes as to what they look like) this is all I have so far - I think they are pretty cool though!