Library of Congress says: Indian delegation in the White House Conservatory during the Civil War, with J.G. Nicolay, President Abraham Lincoln’s secretary, standing in center back row and interpreter John Simpson Smith at back left. [Summary: Photograph of the Southern Plains delegation, taken in the White House Conservatory on March 27, 1863. The interpreter John Simpson Smith (misidentified in source as William Simpson Smith) and the agent Samuel G. Colley are standing at the left of the group; the white woman standing at the far right is often identified as Mary Todd Lincoln. The Indians in the front row are, left to right: War Bonnet, Standing in the Water, and Lean Bear of the Cheyennes, and Yellow Wolf of the Kiowas. Yellow Wolf is wearing the Thomas Jefferson peace medal that aroused such interest. The identities of the Indians of the second row are unknown. Within eighteen months from the date of this sitting, all four men in the front row were dead. Yellow Wolf died of pneumonia a few days after the picture was taken; War Bonnet and Standing in the Water died in the Sand Creek Massacre; and Lean Bear was killed by toops from Colorado Territory who mistook him for a hostile. (Source: Diplomats in buckskin, by Herman J. Viola, p. 101).]
