42nd Ohio Infantry

== Regimental History and Service Record ==
Organized at Camp Chase, Columbus, Ohio, September to November, 1861. Moved to Catlettsburg, Ky., December 14, 1861; thence to Louisa, Ky. Attached to 18th Brigade, Army of the Ohio, to March, 1862. 26th Brigade, 7th Division, Army of the Ohio, to October, 1862. 4th Brigade, Cumberland Division, District of West Virginia, Dept. of the Ohio, to November, 1862. 3rd Brigade, 9th Division, Right Wing 13th Army Corps (Old), Dept. of the Tennessee, to December, 1862. 3rd Brigade, 3rd Division, Sherman's Yazoo Expedition, to January, 1863. 3rd Brigade, 9th Division, 13th Army Corps, Army of the Tennessee, to February, 1863. 2nd Brigade, 9th Division, 13th Army Corps, to July, 1863. 4th Brigade, 1st Division, 13th Army Corps, Dept. of the Tennessee, to August, 1863, and Dept., of the Gulf to September, 1863. 3rd Brigade, 1st Division, 13th Army Corps, Dept. of the Gulf, to November, 1863. Plaquemine, District of Baton Rouge, La., Dept. of the Gulf, to March, 1864. 2nd Brigade, 1st Division, 13th Army Corps, Dept. of the Gulf, to June, 1864. 1st Brigade, 3rd Division, 19th Army Corps, to December, 1864.
SERVICE.--Garfield's Campaign against Humphrey Marshall December 23, 1861, to January 30, 1862. Advance on Paintsville, Ky., December 31, 1861, to January 7, 1862, Jennies Creek January 7. Occupation of Paintsville January 8. Middle Creek, near Prestonburg, January 10. Occupation of Prestonburg January 11. Expedition to Pound Gap, Cumberland Mountains, March 14-17, Pound Gap March 16. Cumberland Gap Campaign March 28-June 18. Cumberland Mountain April 28. Occupation of Cumberland Gap June 18 to September 16. Tazewell July 26. Operations about Cumberland Gap August 2-6. Big Springs August 3. Tazewell August 6. Evacuation of Cumberland Gap and retreat to the Ohio River September 17-October 3. Expedition to Charleston October 21-November 10. Ordered to Memphis, Tenn., November 10, and duty there until December 20. Sherman's Yazoo Expedition December 20, 1862, to January 3, 1863. Chickasaw Bayou December 26-28. Chickasaw Bluff December 29. Expedition to Arkansas Post, Ark., January 3-10, 1863. Assault and capture of Fort Hindman, Arkansas Post, January 10-11. Moved to Young's Point, La., January 17. Duty there and at Milliken's Bend, La., until April 25. Operations from Milliken's Bend to New Carthage March 31-April 17. Movement on Bruinsburg and turning Grand Gulf April 25-30. 
* May 1, 1863 - Battle of Port Gibson, Mississippi
* Skirmish near Edwards Station May 15. 
* Battle of Champion's Hill May 16. 
* Big Black River May 17. 
* May 18-July 4, 1863 - Siege of Vicksburg, Mississippi
** May 19, 1863 - Assault on Vicksburg, Mississippi
** May 22, 1863 - Assault on Vicksburg, Mississippi
Advance on Jackson, Miss., July 5-10. Near Clinton July 8. Siege of Jackson July 10-17, Moved to New Orleans, La., August 13. Duty at Carrollton, Berwick and Brashear City until October. 
* October 3-November 30, 1863 - The (II) Bayou Teche Campaign 
Duty at Plaquemine November 21, 1863, to March 24, 1864. Provost duty at Baton Rouge until May 1. Expedition to Clinton May 1-3. Comite River May 1. Moved to Simsport May 18, thence to Morganza and duty there until September 6. Expeditions up White River July 15 and September 6-15. Moved to Duvall's Bluff, Ark., September 15, and duty there until November. Companies "A," "B," "C" and "D" mustered out September 30, 1864. Companies "E" and "F" mustered out November 25, 1864, and Companies "G," "H," "I" and "K" mustered out December 2, 1864. Regiment lost during service 1 Officer and 58 Enlisted men killed and mortally wounded and 3 Officers and 178 Enlisted men by disease. Total 240.
== Regimental Roster ==
== Regiment Statistical Information ==
== Legacy ==
== Notes ==
== Sources == 
* (Pages 749, 777, 779, 1516)
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