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

[L Verge]

Kees, what I was referring to as laughable were the claims from so many people that they had been present in the presidential box as Lincoln lay dying on the floor. I was not making a disparaging remark solely about Laura Keene. However, I do question the validity of her claim to have made it to the point of holding the President's head in her lap. My instinct (and that is all it is) is that she was probably in the hallway looking in - not actively participating, which would have impeded the doctors' efforts.