133rd Pennsylvania Infantry Regiment

The 133rd Pennsylvania Infantry was organized at Camp Curtin near Harrisburg, Pennsylvania, and mustered in August 1862 for nine month's service under the command of Colonel Franklin B. Speakman.

The regiment was attached to 2nd Brigade, 3rd Division, V Corps, Army of the Potomac.

The regiment fought in the Battle of Fredericksburg from December 12–15, and was part of General Ambrose Burnside's second campaign, nicknamed the "Mud March" from January 20–24, 1863.

During spring of 1863, the regiment was located in Falmouth, until April 27, when it departed to take part in the Chancellorsville campaign, participating in the Battle of Chancellorsville from May 1–5 of 1863.

Enlisted in the regiment was Private John Suhre, who was mortally wounded at Fredericksburg and whose last days are described by Louisa May Alcott in her short novel Hospital Sketches.