The Library of Congress has archived thousands of illustrations and photographs online. In browsing through some of the collections, I came across the above image taken in Baghdad in 1872, when the city was under Ottoman control. The photographer was Pascal Sébah. According to the description, the three individuals shown are: (1): Arab of the Chammar (Shammar) tribe; (2): Arab of the Zobeid tribe; and (3): married Muslim woman of Baghdad.