Why was Mary Surratt not photographed after her arrest?

[Anita]

Hi barryssentials! You wrote,

"For instance, at the trial artists were officially restricted from sketching inside the courtroom and Gen. Hartranft noted that he confiscated drawings in progress that he caught illustrators working on. Since this restriction was in place, it is likely that no cameras were allowed as well (I've personally not read any transcripts that state such official restrictions were implemented but I assume they must have been in place if sketching was not permitted)."

Do you think sketches were made "undercover" so to speak?

I asked the question about why Stanton took no photos of Mary Serratt,
after searching for her photo and finding this sketched portrait of her in the Indiana Historical Society Collections. http://tinyurl.com/mmz8rsr This is where I read that no photographs were taken.

Then I searched the same site under Lincoln Assassination and found official
"Judicial proceedings; Portraits Pencil sketch of George A. Atzerodt during the trial for the assassination of Abraham Lincoln."
   

Portrait sketches of all the male conspirators can be found here on the IHS website. http://tinyurl.com/mdvx2yj

Does anyone know if these sketches were drawn during the trial?