The 20th Maine Infantry Regiment was a volunteer regiment of the United States Army during the American Civil War (1861–1865), most famous for its defense of Little Round Top at the Battle of Gettysburg in Gettysburg, Pennsylvania, July 1–3, 1863. The 133rd Engineer Battalion of the Maine Army National Guard and the United States Army today carries on the lineage and traditions of the 20th Maine.
The Irish Brigade was an infantry brigade, consisting predominantly of Irish Americans, who served in the Union Army in the American Civil War. The designation of the first regiment in the brigade, the 69th New York Infantry, or the "Fighting 69th", continued in later wars. The Irish Brigade was known in part for its famous war cry, the "Faugh a Ballaugh", which is an anglicization of the Irish phrase, fág an bealach, meaning "clear the way" and used in various Irish-majority military units founded due to the Irish diaspora. According to Fox's Regimental Losses, of all Union army brigades, only the 1st Vermont Brigade and Iron Brigade suffered more combat dead than the Irish Brigade during America's Civil War.
The Stonewall Brigade of the Confederate Army during the American Civil War, was a famous combat unit in United States military history. It was trained and first led by General Thomas J. "Stonewall" Jackson, a professor from Virginia Military Institute (VMI). His severe training program and ascetic standards of military discipline turned enthusiastic but raw recruits into an effective military organization, which distinguished itself from the First Battle of Bull Run in 1861 to Spotsylvania Court House in 1864. Its legacy lives on in the 116th Infantry Brigade, which bears the unofficial nickname "Stonewall Brigade," and in several living history reenactment groups.
John Henry Hobart Ward, was a United States Army soldier who fought in the Mexican–American War and in the American Civil War. Ward joined the army in 1842 and fought in multiple battles in the Mexican–American war, including the Battle of Monterrey, where he was wounded. After leaving the army in either 1847 or 1851, he served as both the assistant commissary general and the main role itself for the state of New York. With the outbreak of the American Civil War in 1861, Ward rejoined the army, and became the colonel of the 38th New York Infantry Regiment. Ward and his regiment were engaged in the First Battle of Bull Run and in several battles in the Peninsula campaign. He was elevated to brigade command after the Battle of Chantilly in September 1862.
Birkett Davenport Fry was an adventurer, soldier, lawyer, cotton manufacturer, and a Confederate brigadier general in the American Civil War. A survivor of four battle wounds, he commanded one of the lead brigades during Pickett's Charge at the Battle of Gettysburg.
The 8th Ohio Infantry Regiment was an infantry regiment in the Union Army during the American Civil War. It served in the Eastern Theater in a number of campaigns and battles, but perhaps is most noted for its actions in helping repulse Pickett's Charge during the Battle of Gettysburg.
The Philadelphia Brigade was a Union Army brigade that served in the American Civil War. It was raised primarily in the city of Philadelphia, Pennsylvania, with the exception of the 106th regiment which contained men from Lycoming and Bradford counties.
The Texas Brigade was an infantry formation of the Confederate Army that distinguished itself in the American Civil War. Along with the Stonewall Brigade, they were considered the Confederate Army's shock troops. It fought in every major battle of the Eastern Theater except Chancellorsville.
The First New Jersey Brigade is the common name for an American Civil War brigade of New Jersey infantry regiments in the Union Army of the Potomac. Its official designation through most of its service was as the 1st Brigade, 1st Division, VI Corps.
Augustus van Horne Ellis was an American lawyer, sea captain, and soldier. He was a brevet brigadier general in the Union Army during the Civil War, and was killed in action at the Battle of Gettysburg.
The 5th Michigan Infantry Regiment was an infantry regiment from Michigan that served in the Union Army during the American Civil War. The regiment was mustered into federal service in August 1861 and served in the Eastern Theater. It fought in all the major battles of the Army of the Potomac, including Seven Pines, the Seven Days Battles, Second Bull Run, Chantilly, Antietam, Fredericksburg, Chancellorsville, Gettysburg, the Wilderness, Spotsylvania, Cold Harbor, Petersburg, and Appomattox. The regiment was mustered out in June 1865.
The 2nd Florida Infantry Regiment was an infantry regiment that fought in service of the Confederate States Army in the American Civil War.
The 66th Ohio Infantry Regiment was an infantry regiment in the Union Army during the American Civil War. It was noted for its holding the high ground at the center of the line at Antietam as part of Tyndale's 1st Brigade, Greene's 2nd Division of Mansfield's XII Corps.
The 72nd New York Infantry Regiment was one of five infantry regiments formed by former U.S. Congressman Daniel Sickles and established as part of the Excelsior Brigade which fought with the Union Army during multiple key engagements of the American Civil War, including the Chancellorsville Campaign in Virginia, the Battle of Gettysburg in Pennsylvania, and the Overland Campaign. Leaders from the 72nd New York recruited men from New Jersey, as well as from cities and small towns across the State of New York.
The 26th Alabama Infantry Regiment was an infantry regiment of the Confederate States Army regiment during the American Civil War. The regiment was composed of ten companies that came from various counties across Alabama. It is one of the few regiments that served both in the Army of Northern Virginia and Army of Tennessee.
The 119th New York Infantry Regiment was an infantry regiment in the Union Army during the American Civil War.
The 109th Pennsylvania Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 4th Texas Infantry Regiment was a unit of Confederate States Army infantry volunteers that was created in 1861 and fought in the Army of Northern Virginia during the American Civil War. As part of the famous Texas Brigade, the regiment fought at Eltham's Landing, Seven Pines, Gaines's Mill, Second Bull Run, South Mountain, Antietam, and Fredericksburg in 1862. It fought at Suffolk, Gettysburg, Chickamauga and Wauhatchie in 1863 and the Wilderness, Spotsylvania, Cold Harbor, and the Siege of Petersburg in 1864. The regiment surrendered to Federal forces on 9 April 1865 after the Battle of Appomattox Court House.
The 5th Texas Infantry Regiment was a unit of Confederate States Army infantry volunteers created in 1861 that fought in the Army of Northern Virginia during the American Civil War. The unit was part of the famous Texas Brigade. The regiment fought at Eltham's Landing, Seven Pines, Gaines's Mill, Second Bull Run, South Mountain, Antietam, and Fredericksburg in 1862. It fought at Gettysburg and Chickamauga in 1863 and the Wilderness, Spotsylvania, Cold Harbor, and the Siege of Petersburg in 1864. The regiment surrendered to Federal forces on 9 April 1865 after the Battle of Appomattox Court House.
The 1st Louisiana Infantry Regiment was a unit of volunteers recruited in Louisiana that fought in the Confederate States Army during the American Civil War. Formed in April 1861, the regiment was sent to fight in the Eastern Theater of the American Civil War. Joining a brigade of Louisiana regiments, it fought at Malvern Hill, Second Bull Run, Antietam, and Fredericksburg in 1862, at Chancellorsville, Second Winchester, Gettysburg, and Mine Run in 1863, and at the Wilderness, Spotsylvania, Monocacy, Third Winchester, Fisher's Hill, Cedar Creek, and Petersburg in 1864, and at Appomattox in 1865. At Appomattox, the regiment was only a shadow of its former self.
Confederate States of America 
Confederate States Army 
