Leonard Crowdog of the Lakota. He's been fighting for Indian rights since the early 70's. Here is his wikipidea entery
John Trudell is also an Indian activist who has been at it for a while. His page
People don't realize these people are still fighting for basic rights and for the US government to honor laws/treaties they signed. American Indians are still ignored and often pushed out of the American mind. It's really sad.
I think Bayard Rustin was a fascinating man. Openly gay, he had to navigate quite a road as a civil rights leader.
This submission has been removed because it violates the rule on poll-type questions. These poll-type questions do not lend themselves to answers with a firm foundation in sources and research, and the resulting threads usually turn into monsters with enormous speculation and little focussed discussion. “Most”, “least”, "best" and "worst" questions usually lead to vague, subjective, and speculative answers. If you'd like, you may PM /u/caffarelli to have your question considered for an upcoming Tuesday Trivia thread.