Each night, Elmore Nickleberry guides his garbage truck through the streets of downtown Memphis, Tennessee — a present-day link to a frequently forgotten chapter in American history, one long eclipsed by the slaying of Dr. Martin Luther King Jr.

Now, surrounded by the soul music that helped make Memphis famous, Mr. Nickleberry tells an uplifting life story of endurance and character — joined by the other men and women of the 1968 sanitation strike whose courageous stand helped change the world forever.