Thanks for the kind words.
The small summation I did of course leaves out many possible names/parties you could name. Also within that list, Huey Long would not really be considered a leftist in any capacity that is not economics.
The left/right dichotomy is hopelessly flawed, but I end up using it all the same.
RE: 'Earl Browder; the failure of American Communism' by James G. Ryan