Best pick would be: "[It is] important that the whole Nation lend a hand in trying to lift the burden of ignorance from the South."
Homer Plessy is the man behind the famous Supreme Court case, "Plessy v. Ferguson." The state of Louisiana had passed a law in 1890, segregating blacks from whites on public transportation. In 1892, Plessy, who was 1/8 black, bought a first class train railroad ticket, took a seat in the whites only section, and then informed the conductor that he was part black. He was removed from the train and jailed. He argued for his civil rights before Judge John Howard Ferguson and was found guilty. His case went all the way to the Supreme Court which at that time upheld the idea of "separate but equal" facilities.
Plessy was very much an activist for civil rights, trying to bring public attention to matters of racial injustice.