"Roy Kellerman was in charge. He waved William Greer, who had driven the death car,
into the driver's seat. Kellerman sat next to him. Agent Paul Landis squeezed in on the
right side. Admiral Burkley said he had told Mrs. Kennedy that he would stay with the
body until it was returned to the White House. Kellerman waved the doctor into the front
seat and he sat on top of Landis. Standing beside the ambulance were the cardiologist,
the nurse, and driver sent hours ago by Captain Canada of Bethesda in case President
Johnson sustained a heart attack. They were told there was no room for them.
The car started to move forward. Mrs. Kennedy and General McHugh sat on one side
of the casket. Opposite, leaning across the bronze to speak, sat the Attorney General."
-- The Day Kennedy was Shot, Jim Bishop (1968)