behind AotW

First Lieutenant William Ross Hartshorne was the regimental Adjutant and led the Bucktails – the 13th Pennsylvania Reserves – at Antietam after Colonel McNeil was killed. He commanded again, as their Major, at Gettysburg in July 1863. He was commissioned Colonel of the new 190th Pennsylvania Infantry on 6 June 1864 but was captured in August 1864, while commanding the brigade, and was a prisoner to February 1865. He was honored by brevet to Brigadier General to date from March 1865.

His photograph in uniform is online from the Pennsylvania House of Representatives. The post-war image of the General is from Thompson & Rauch’s History of the “Bucktails,” Kane Rifle regiment … (1906).