Remembering History: Armed Mississippi highway patrolmen and Philadelphia policemen confine a group of white spectators to the sidewalk as a civil rights march led by Dr. Martin Luther King passes in Philadelphia, Mississippi, on June 25, 1966.

Armed Mississippi highway patrolmen and Philadelphia policemen confine a group of white spectators to the sidewalk as a civil rights march led by Dr. Martin Luther King passes in Philadelphia, Mississippi, on June 25, 1966.

Armed Mississippi highway patrolmen and Philadelphia policemen confine a group of white spectators to the sidewalk as a civil rights march led by Dr. Martin Luther King passes in Philadelphia, Mississippi, on June 25, 1966.