One of the two known photographs of Mary Surratt. This particular one is know in the assassination field as Mrs. Surratt’s “fair, fat, and forty” picture as Mary Surratt was described thusly in the press of the day.
Image Source: Surratt House Museum
LincolnConspirators.com 
The right hand in this photo appears to be deformed, as she appears to be grasping something, particularly when compared to her left hand.