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

[Gene C]

How would Laura Keene have been dressed, had she made it into the presidential box? With those big dresses, making it up the stairs, down that narrow corridor, and finally into the box, it must have been very crowded, even for a short period of time. And how quickly could she have gotton to the box? That's why I am a bit skeptical at this point.

For you fashion experts. How much personal space would Mary, Clara and Laura occupy or need the way they were dressed that night. Do we know what Mary wore? I don't recall any discussion of that before.