Did Robert Lincoln Ride the Funeral Train to Baltimore?

[loetar44]

Accounts I've read vary, the history isn't easy to find, at least for me ..... On May 4, 1865, AL’s (and Willie’s) remains were placed in the receiving tomb at Oak Ridge. But where was Robert Todd Lincoln at this very moment? Had he rode in the procession, accompanied by a cousin (John Hanks ?). I remember that I once read this story, and I also read that he and some of the closest friends and advisers (who ?) of AL flanked the doors (of the vault) during the placement of the coffins in the vault. The problem is that I can’t recall where and when I read this. Additional question: where was Tad? Was he with RTL or with his mother in the White House?