Why was Mary Surratt not photographed after her arrest?

[SSlater]

I don't have any confirmed documentation, but I can deduce from the little that I know, that the conspirators were photographed on the Gunboats and Mary wasn't there. . There wasn't another Official photo session. There wasn't any "snapshot" capability available. The sessions were complicated and time consuming. Thus we have a picture of Payne plastered against the bulkhead- and looking very bored.
Weren't the prisoners marched into the Courtroom in their Hoods?
I recall a description of Mary suffering from the heat of her veil - in the Courtroom.
The pictures that I recall of Mudd was a very formal shot , wearing Sporty clothes. Mary's pic looks like it was takes during her Mourning, for the death of her husband.