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

[LincolnToddFan]

Hi folks,

Just a little O.T., but one of the reasons I've always found the idea of Keene cradling the dying AL in her lap as improbable is the presence of Mary. She was such a notoriously possessive woman where her husband was concerned...would she have permitted a total stranger to take such liberties while she was present?

Or was she in such a state of shock she probably took no notice?(Assuming it even happened at all?)