freedom rider
Noun
Meaning
one of an interracial group of civil rights activists who rode buses through parts of the South in order to protest racial segregation
Source: WordNetHypernyms
Examples
He was a Freedom Rider, participating in sit-ins to fight Jim Crow laws and he chaired the Student Nonviolent Coordinating Committee (SNCC) from 1963 to 1966.
In the weeks before the Williams family boarded the Greyhound bus, the very first Reverse Freedom Rider to come to Hyannis arrived on May 12, 1962.