The “rubber box” or did Laura Keene indeed held Lincoln’s head?

[RJNorton]

In Reck's book there is no mention of Keene following the group into the Petersen House.

In Worst Seat in the House, Caleb Stephens, a member here, writes, "As the men in the front carried Lincoln through the dress circle and down the stairs, Henry, Clara, and Mary Todd followed closely behind." No mention at all of Keene with the group.

In contrast, on the NPS website, it says, "Assisted by Major Rathbone, Miss Harris, and Laura Keene, Mrs. Lincoln followed her husband across to the Petersen House."

http://npshistory.com/handbooks/historical/3b/hh3e.htm