Ralph Abernathy

In 1971, Abernathy addressed the United Nations, speaking about world peace. He also assisted in brokering a deal between the FBI and American Indian Movement protestors during the Wounded Knee incident of 1973. He retired from his position as president of the SCLC in 1977 and became president emeritus. Later that year, he unsuccessfully ran for the U.S. House of Representatives for the 5th district of Georgia. He later founded the Foundation for Economic Enterprises Development, and he testified before the U.S. Congress in support of extending the Voting Rights Act in 1982.
In 1989, Abernathy wrote ''And the Walls Came Tumbling Down'', a controversial autobiography about his and King's involvement in the civil rights movement. Abernathy eventually became less active in politics and returned to his work as a minister. He died of heart disease on April 17, 1990. His tombstone is engraved with the words "I tried." Provided by Wikipedia