Did Robert Lincoln Ride the Funeral Train to Baltimore?

[RJNorton]

In Kunhardt's "Looking for Lincoln" it states that both MTL and her husband are in the cement block together.

But I think that's a mistake...they aren't.

Right! On p. 362 it says, "Finally Lincoln and Mary were sealed into their concrete tomb and covered by cement." I wish there was (were?) a footnote for that statement. That is certainly not what I have read elsewhere.