The Battle of Antietam, also called the Battle of Sharpsburg, particularly in the Southern United States, took place during the American Civil War on September 17, 1862, between Confederate General Robert E. Lee's Army of Northern Virginia and Union Major General George B. McClellan's Army of the Potomac near Sharpsburg, Maryland, and Antietam Creek. Part of the Maryland Campaign, it was the first field army–level engagement in the Eastern Theater of the American Civil War to take place on Union soil. It remains the bloodiest day in American history, with a tally of 22,727 dead, wounded, or missing on both sides. Although the Union Army suffered heavier casualties than the Confederates, the battle was a major turning point in the Union's favor.
Ambrose Everts Burnside was an American army officer and politician who became a senior Union general in the Civil War and three-time Governor of Rhode Island, as well as being a successful inventor and industrialist.
John Grubb Parke was a United States Army engineer and a Union general in the American Civil War. Parke's Civil War service was closely associated with Ambrose E. Burnside, often serving him as chief of staff in major engagements such as Antietam, Fredericksburg and the Overland Campaign. Parke also held significant field commands during Burnside's North Carolina Expedition, Vicksburg and the battle of Fort Stedman as well as brief stints in command of the Army of the Potomac. From 1887 to 1889, John G. Parke was the Superintendent of the United States Military Academy.
IX Corps was a corps of the Union Army during the American Civil War that distinguished itself in combat in multiple theaters: the Carolinas, Virginia, Kentucky, Tennessee, and Mississippi.
The Maryland campaign occurred September 4–20, 1862, during the American Civil War. The campaign was Confederate General Robert E. Lee's first invasion of the North. It was repulsed by the Army of the Potomac under Maj. Gen. George B. McClellan, who moved to intercept Lee and his Army of Northern Virginia and eventually attacked it near Sharpsburg, Maryland. The resulting Battle of Antietam was the bloodiest day of battle in American history.
Clarkson Nott Potter was a New York attorney and politician who served four terms in the United States House of Representatives from 1869 to 1875, then again from 1877 to 1879.
George Washington Getty was a career military officer in the United States Army, most noted for his role as a division commander in the Army of the Potomac during the final full year of the American Civil War.
Jesse Lee Reno was a career United States Army officer who served in the Mexican–American War, in the Utah War, on the western frontier and as a Union General during the American Civil War from West Virginia. Known as a "soldier's soldier" who fought alongside his men, he was killed while commanding a corps at Fox's Gap during the Battle of South Mountain. Reno, Nevada; Reno County, Kansas; Reno, Ohio; El Reno, Oklahoma; Reno, Pennsylvania; Fort Reno (Oklahoma); and Fort Reno Park in Washington, D.C. were named after him.
Isaac Peace Rodman was a Rhode Island banker, politician, and a Union Army brigadier general in the American Civil War, who was mortally wounded at the Battle of Antietam.
James Brewerton Ricketts was a career officer in the United States Army, serving as a Union Army general during the Civil War.
Edward Ferrero was one of the leading dance instructors, choreographers, and ballroom operators in the United States. He also served as a Union Army general in the American Civil War, being most remembered for his conduct unbecoming in the Battle of the Crater, where he was reported to have been drinking with another general behind the lines as both their units were virtually destroyed.
The 2nd Rhode Island Infantry Regiment was an infantry regiment composed of volunteers from the state of Rhode Island that served with the Union Army in the American Civil War. They, along with the 1st Rhode Island, wore a very simple uniform. The uniform composed of a dark blue jacket like shirt, tannish grey pants, and a dark blue chasseur kepi. The 2nd Rhode Island also wore havelocks in the beginning of the war, but after finding them useless they discarded them.
David Rumph Jones was a Confederate general in the American Civil War.
Edward Tuckerman Potter was an American architect best known for designing the 1871 Mark Twain House in Hartford, Connecticut. With his half-brother William Appleton Potter, he also designed Nott Memorial Hall (1858–79) at his alma mater, Union College, Schenectady, New York. Both the Mark Twain House and Nott Memorial Hall are National Historic Landmarks.
Simon Goodell Griffin was a Union Army brigadier general during the American Civil War, farmer, teacher, lawyer and New Hampshire state legislator.
The state of Rhode Island during the American Civil War remained loyal to the Union, as did the other states of New England. Rhode Island furnished 25,236 fighting men to the Union Army, of which 1,685 died. The state used its industrial capacity to supply the Union Army with the materials needed to win the war. Rhode Island's continued growth and modernization led to the creation of an urban mass transit system and improved health and sanitation programs.
Sumner Carruth was an officer in the volunteer army of the United States during the American Civil War. He commanded the 35th Massachusetts Volunteer Infantry and eventually rose to the command of two different brigades in the IX Corps.
John Irvin Curtin was a cousin of Pennsylvania governor Andrew Gregg Curtin. He led a regiment and then a brigade in the American Civil War.
Edward Harland was a Union general during the American Civil War. He was associated with early battles of the IX Corps as well as Union involvement in North Carolina and the Tidewater region of Virginia.
James Phillip Simms was a Confederate States Army brigadier general during the American Civil War. He was a lawyer in Covington, Georgia, before and after the war. He served two non-consecutive terms in the Georgia legislature after the war.
Major General 
