United States Regiments & Batteries > Ohio

The 75th Ohio Volunteer Infantry Regiment lost 4 officers and 110 enlisted men killed or mortally wounded and 2 officers and 101 enlisted men to disease during the Civil War. It is honored by two monuments at Gettysburg shared with the 25th Ohio Infantry.

November 7 Organization begun at Camp McLain, Cincinnati, Ohio under Colonel Nathaniel C. McLean, Lt. Colonel R.A. Constable and Major Robert Reily.
January 8 Organization completed
January 28 Left State for Grafton, Va. Attached to Milroy’s Command, Cheat Mountain, District West Virginia
February 17-March 1 March to Huttonville and attached to Milroy’s Brigade, Dept. of the Mountains
April 1-12 Expedition to Lost River Region attached to Schenck’s Brigade, Dept. of the Mountains
April 12 Action at Monterey
May 8
Battle of McDowell

The Regiment lost 87 men

May 10-12 Retreat to Franklin
May 29 Franklin
June 1-2 Pursuit of Jackson to Shenandoah Valley, Strasburg and Staunton Road
June 3 Mt. Jackson
June 4 New Market
June 6 Harrisonburg
June 8
Battle of Cross Keys
June 26 At Middletown, attached to 2nd Brigade, 1st Division, 1st Corps, Army of Virginia. Colonel McLean was given command of the brigade
July 7 At Sperryville
July 16-19 Reconnaissance to Madison Court House
August 9 Battle of Cedar Mountain
August 16-September 2 Pope’s Campaign in Northern Virginia
August 22 Freeman’s Ford
August 29-30
Second Battle of Bull Run

The Regiment lost 113 men. The colors were riddled with over 90 holes.

September-December Duty in the Defenses of Washington, D.C. attached to 2nd Brigade, 1st Division, 11th Army Corps, Army of the Potomac
September 25-28 Expedition from Centreville to Bristoe Station and Warrenton Junction
November 29 Colonel Nathaniel C. McLean promoted to brigadier general
December 3 Lt. Colonel R.A. Constable promoted to colonel and Major Reily to lieutenant colonel
December 10-15 March to Fredericksburg, Va.
January 12 Colonel Constable resigned
January 20-24 “Mud March”
February-April At Falmouth
February 26 Woodstock and Cedar Run
March 3 Lieutenant Colonel Reily promoted to colonel
April 27-May 6 Chancellorsville Campaign
May 1-5
Battle of Chancellorsville

The Regiment in a half hour lost 150 casualties, including Colonel Reily, who was was mortally wounded.

May 22 Andrew L. Harris promoted to colonel
June 11-July 24 Gettysburg Campaign
July 1-3
Battle of Gettysburg

The 75th Ohio was commanded at Gettysburg by Colonel Andrew L. Harris, who took command of the brigade on July 1. Captain George B. Fox then took over the regiment.

The Regiment lost 16 killed 16, 96 wounded 96, and 71 missing, a total of 183.

From the monument:

Arriving at Gettysburg from Emmitsburg July 1, 1863, The 25th and 75th Ohio Infantry advanced beyond the town and, under a heavy cannonade, took position here, supporting Battery G, 4th U.S. Artillery. During July 2 and 3, they held an advanced line on East Cemetery Hill, and early July 4 led the advance into the town.

July 5-24 Pursuit of Lee
August 6-12 Moved to Morris Island, S.C. and attached to 2nd Brigade, Gordon’s Division, Folly Island, S.C., 10th Army Corps, Dept. of the South
August 18-September 7 Siege operations against Fort Wagner, Morris Island, S.C., and against Fort Sumpter and Charleston
September 7 Capture of Fort Wagner and Gregg, Morris Island
September Moved to Folly Island, S.C.
February 6-14 Expedition to John’s and James’ islands
February 22 Ordered to Jacksonville, Fla. Regiment mounted and attached to 1st Brigade, Ames’ Division, District of Florida
April 2 Expedition from Jacksonville to Cedar Creek; Cedar Run
April 25-May 10 Expedition to Headwaters of the St. Johns and Kissinee Rivers, destroying and capturing a large amount of stores and property. Attached to District of Florida, Dept. of the South
April 28 Action near Jacksonville
May 25 Near Camp Finnegan
May 31-June 3 Expedition from Jacksonville to Camp Milton
July 3 King’s Creek, S.C. (Detachment)
July 23-28 Raid from Jacksonville to Baldwin
July 25 Near Trail Ridge
July 26 Action at St. Mary’s Trestle
August 12 Camp Baldwin
August 15-19 Raid on Florida Railroad
August 17 Gainesville
September 28 Expedition to Enterprise
October – November, Companies A, B, C, D, F and G mustered out. Remaining companies attached to 4th Separate Brigade, Dept. of the South
December 8-10 Companies E, H, I and K moved to Hilton Head, S.C. and attached to 1st Brigade, Coast Division, Dept. of the South
December 29 Pocotaligo Bridge, S.C.
January Returned to Florida and duty at District Headquarters, Jacksonville, and at Tallahatchie, Fla. attached to 4th Separate Brigade, Dept. of the South
July 15 Mustered out