Ormsby MacKnight Mitchel
July 28, 1809 – October 30, 1862 Ormsby MacKnight Mitchel was a world-renowned astronomer and a Union major general during the American Civil War … Read more
Overland Campaign
May 4-June 24, 1864 The Overland Campaign, also known as the Wilderness Campaign, was a Union offensive launched in May 1864, intended to defeat … Read more
Owen Brown Monument, Courthouse Lawn, Jefferson, Ohio
1914 Ohio’s American Civil War soldiers and civilians sought to commemorate the troopers’ devotion to and service with the United States by constructing monuments … Read more
Patrick Ronayne Cleburne
March 16 or March 17, 1828 – November 30, 1864 Major General Patrick Ronayne Cleburne was one of the Confederacy's leading general officers in … Read more
Patterson’s Battery of Ohio Volunteer Artillery
1863–1865 In the American Civil War, Ohio provided the federal government with 260 regiments of men, including infantry, artillery, and cavalry units. Ohioans also … Read more
Paulsen’s Battery of Ohio Volunteer Artillery
1862 In the American Civil War, Ohio provided the federal government with 260 regiments of men, including infantry, artillery, and cavalry units. Ohioans also … Read more
Peace Democrats
A majority of Northerners supported the Union war effort, yet a sizable and vocal minority opposed the conflict. Most of the opponents, the Copperheads, … Read more
Peninsula Campaign
March 17–August 14, 1862 The Peninsula Campaign, also known as the Peninsular Campaign, was an ill-fated Union offensive launched by Major General George B. … Read more
Peninsular Campaign
March 17–August 14, 1862
Petersburg Campaign
June 1864 – March 1865 Beginning in June 1864, Lieutenant General Ulysses S. Grant's Petersburg Campaign was a nine month-long Union offensive that consisted … Read more