Clara Harris's Bloody Dress

[Rsmyth]

Laura Keene being in the box is central to the story of The Lincoln Flag. If it is proved she was not present then that casts doubt on Jeannie Gourlay's statement that her father, Thomas, led her to the box and after, collected the flag.
Re-reading previous posts Eva posed, would Mary have allowed Laura Keene to cradle her husbands head? What do others think? Was Mary too frantic to have noticed or would her wifely instincts have kicked in and taken her rightly place holding her husband's head?