Thomas Shields served as a Private in Co. G. He lost a leg at the Fredericksburg/Chancellorsville battle on 5th May, 1863. The photograph above is of Thomas at the Armory Square Hospital in Washington D.C. in about 1870.

The original photograph (see below) this image of Thomas Shields was sourced from is titled "Civil War Amputees, Armoury Square Hospital, Washington, D.C." and is housed at the National Library of Medicine - Prints and Photographs (USA).