The President of the United States of America, in the name of Congress, takes pride in presenting the Medal of Honor (Posthumously) to Private Henry M. Hardenbergh, United States Army, for extraordinary heroism on 16 August 1864, while serving with Company G, 39th Illinois Infantry, in action at Deep Run, Virginia, for capture of flag. Private Hardenbergh was wounded in the shoulder during this action. He was killed in action at Petersburg, Virginia, on 28 August 1864.