Their is an online gallery of Paul Fusco's photos from the train that took the body of RFK from New York to Washington. It is at Robert F. Kennedy Funeral Train.
From the site:
On Saturday afternoon, June 8, Kennedy's body, as President Lincoln's 103 years before, was carried by a funeral train from New York to Washington. As they had for Lincoln, many thousands - perhaps, for RFK, a million people - lined the tracks. The coffin, on a bier close to the floor of the observation car, could not be seen by bystanders. So Kennedy's pallbearers lifted it up and placed it, a bit precariously, on chairs. Along the route of the train, Boy Scouts and firemen braced at attention; nuns, some wearing dark glasses, stood witness; housewives wept. Thousands and thousands of black people waited quietly in the heat, perhaps because they lived close to the tracks, but also because they had felt for Kennedy, and knew they would miss him. "Marvelous crowds," said Arthur Schlesinger, staring out the window as the train slowly rocked south. "Yes," said Kenny O'Donnell. "But what are they good for now?"