109th Pennsylvania Infantry

== Regimental History and Service Record ==
Organized at Philadelphia March to May, 1862. Moved to Washington, D.C., May 10; thence to Harper's Ferry May 24, 1862. Attached to 1st Brigade, Sigel's Division, Dept. of the Shenandoah, to June, 1862. 1st Brigade, 2nd Division, 2nd Army Corps, Army of Virginia, to August, 1862. 2nd Brigade, 2nd Division, 2nd Army Corps, Army of Virginia, to September, 1862. 2nd Brigade, 2nd Division, 12th Army Corps, Army of the Potomac, to October, 1862. 3rd Brigade, 2nd Division, 12th Army Corps, to January, 1863. 2nd Brigade, 2nd Division, 12th Army Corps, Army of the Potomac, to October, 1863, and Army of the Cumberland to April, 1864. 2nd Brigade, 2nd Division, 20th Army Corps, Army of the Cumberland, to March, 1865.
SERVICE.--Defense of Harper's Ferry, W. Va., May 24-30, 1862. Operations in the Shenandoah Valley until August. Battle of Cedar Mountain August 9. Pope's Campaign in Northern Virginia August 16-September 2. Guarding trains during Battles of Bull Run. Maryland Campaign September 6-22. Battle of Antietam September 16-17 (Reserve). Duty at Bolivar Heights until December. Reconnaissance to Ripon, W. Va., November 9. Reconnaissance to Winchester December 2-6. March to Fredericksburg December 9-16. Burnside's 2nd Campaign, "Mud March," January 20-24, 1863. At Stafford Court House until April 27. Chancellorsville Campaign April 27-May 6. Battle of Chancellorsville May 1-5. 
* June 11-August 1, 1863 - The Gettysburg Campaign
** July 1-3, 1863 - Battle of Gettysburg, Pennsylvania
** Pursuit of Lee July 5-24.
* Duty near Raccoon Ford until September.
* Movement to Bridgeport, Ala., September 24-October 3.
* Reopening Tennessee River October 26-29. 
* Battle of Wauhatchie, Tenn., October 28-29. 
* November 23-27, 1863 - The Chattanooga/Ringgold Campaign
** Lookout Mountain November 23-24.
** Mission Ridge November 25.
** Ringgold Gap, Taylor's Ridge, Ga.,, November 27.
* Duty on Nashville & Chattanooga Railroad until April, 1864. 
* May 1-September 8, 1864 - The Atlanta Campaign
** May 8-11, 1864 - Demonstration against Rocky Faced Ridge, Georgia
** May 14-May 15, 1864 - Battle of Resaca, Georgia
** Near Cassville May 19. 
** New Hope Church May 25. 
** May 25-June 5, 1864 - Operations in Bartow County, Georgia
** Operations about Marietta and against Kenesaw Mountain June 10-July 2. 
** Pine Hill June 11-14. 
** Lost Mountain June 15-17. 
** Gilgal or Golgotha Church June 15. 
** Muddy Creek June 17. 
** Noyes Creek June 19. 
** Kolb's Farm June 22. 
** Assault on Kenesaw June 27. 
** Ruff's Station or Smyrna Camp Ground July 4. 
** Chattahoochie River July 5-17. 
** Peach Tree Creek July 19-20. 
** July 22-August 25, 1864 - Siege of Atlanta, Georgia
** Operations at Chattahoochie River Bridge August 26-September 2. 
** September 2-November 15 - Occupation of Atlanta, Georgia
** October 26-29, 1864 - Expedition from Atlanta, Georgia to Tuckum's Crossroads, Georgia
** November 9, 1864 - Skirmish near Atlanta, Georgia 
* November 15-December 21, 1864 - The Savannah Campaign
** December 10-21, 1864 - Siege of Savannah, Georgia
* January 1-April 26, 1865 - The Carolinas Campaign
** Battle of Bentonville, N. C., March 19-21. 
** Consolidated with 111th Pennsylvania Infantry March 31, 1865.
== Regimental Roster ==
== Regiment Statistical Information ==
* Regiment lost during service 3 Officers and 61 Enlisted men killed and mortally wounded and 71 Enlisted men by disease. Total 135.
== Legacy ==
== Notes ==
== Sources == 
* (Pages 704, 705, 707, 715, 719, 720, 721, 723, 827, 835, 866, 905, 916, 1610-1611)
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