So earlier today I was messing around on Sporcle, playing a quiz about the people who attended the March on Washington. One of the people cited in the quiz is Bayard Rustin. If you're not familiar, read about him. If you have Netflix, it's well worth your time to check out Brother Outsider, a documentary about him.
He was integral to the success of the March, and he was consistently targeted by bigots (and marginalized within certain elements of the civil rights movement) because of his homosexuality and inclination towards more radical politics. It's an absolute disgrace that he isn't more well-known in this country for his work on both black civil rights and LGBT civil rights. There are obviously quite a few people from the Civil Rights era that can justifiably be called heroes, and Rustin should be near the top of that list.