The lady circled in red was Lucy Higgs Nichols. She was born into slavery in Tennessee, but during the Civil War she managed to escape and found her way to 23rd Indiana Infantry Regiment which was encamped nearby. She stayed with the regiment and worked as a nurse throughout the war. After the war, she moved north with the regiment and settled in Indiana, where she found work with some of the veterans of the 23rd. She applied for a pension after Congress passed the Army Nurses Pension Act of 1892 which allowed Civil War nurses to draw pensions for their service. The War Department had no record of her, so her pension was denied. Fifty-five surviving veterans of the 23rd petitioned Congress for the pension they felt she had rightfully earned, and it was granted. The photograph shows Nichols and other veterans of the Indiana regiment at a reunion in 1898. She died in 1915 and is buried in a cemetery in New Albany, Indiana.