New York 105th Infantry (Union)

    28 Mar 1862

    New York 105th Infantry organized at New York.

    09 Aug 1862

    Participated in the Battle of Cedar Mountain at Culpepper County, Virginia.

    The Battle of Cedar Mountain
    The Battle of Cedar Mountain

    Maj. Gen. John Pope was placed in command of the newly-constituted Army of Virginia on June 26th. Pope's orders were to defend Washington DC and Union-held northern Virginia while the Army of the Potomac under Maj. Gen. George B. McClellan battled Robert E. Lee outside of Richmond. When McClellan was defeated at the end of the Seven Days battles less than a week later, Lee turned his attention north toward Pope while McClellan regrouped his army. Pope's three army corps were arrayed in a line from the Blu… Read More

    28 Aug 1862

    Participated in the Battle of Thoroughfare Gap at Fauquier County, Virginia; Prince William County, Virginia.

    The Battle of Thoroughfare Gap
    The Battle of Thoroughfare Gap

    After the early summer collapse of the Union Peninsula Campaign offensive to capture Richmond, Robert E. Lee sought to move his army north and threaten Washington DC before Union forces could regroup. His trusted and highly capable "wing" commanders, Maj. Gen. "Stonewall" Jackson and Lieut. Gen. James Longstreet, brought Lee's army within 35 miles of the Union capital by the end of August. Jackson waited for the arriving Union army near Manassas. Longstreet, trailing Jackson by a day, met the Union divisi… Read More

    28 Aug 1862

    Participated in the Battle of Second Bull Run at Prince William County, Virginia.

    The Battle of Second Bull Run
    The Battle of Second Bull Run

    After the early summer collapse of the Union Peninsula Campaign offensive to capture Richmond, Robert E. Lee sought to move his army north and threaten Washington DC before Union forces could regroup. Read More

    01 Sep 1862

    Participated in the Battle of Chantilly at Fairfax Co, VA.

    The Battle of Chantilly
    The Battle of Chantilly

    Confederate Maj. Gen. "Stonewall" Jackson hoped to cut off the Union retreat from Manassas the day after the Confederate victory at the second battle fought there. Jackson's wing of Lee's army made a wide, flanking march, screened by Maj. Gen. J.E.B. Stuart's cavalry, north and then east, to take the strategically important village of Germantown. There, Maj. Gen. John Pope's only two retreat routes to Washington - the Warrenton Pike and the Little River Turnpike - converged. On September 1st, beyond Chanti… Read More

    14 Sep 1862

    Participated in the Battle of South Mountain at Frederick County, Maryland; Washington County, Maryland; Boonsboro, Maryland.

    The Battle of South Mountain
    The Battle of South Mountain

    After his success at Second Manassas, Gen. Robert E. Lee led the Army of Northern Virginia north across the Potomac River on an invasion of Maryland in September of 1862. Lee divided his army, sending a portion of it into western Maryland while Lieut. Gen. Stonewall Jackson's wing attempted to capture the Federal garrison at Harper's Ferry. The bold plan was jeopardized on September 13th when a mislaid copy of Lee's orders revealing the Confederates' plans was given to Union commander Maj. Gen. George B. M… Read More

    17 Sep 1862

    Assigned to the Regiment led by .

    17 Sep 1862

    Assigned to the Regiment led by .

    17 Sep 1862

    Assigned to the Division led by .

    17 Sep 1862

    Participated in the Battle of Antietam at Sharpsburg, Maryland.

    The Battle of Antietam
    The Battle of Antietam

    The Army of the Potomac, under the command of Maj. Gen. George McClellan, mounted a series of powerful assaults against General Robert E. Lee's forces along Antietam Creek near Sharpsburg, Maryland, on September 17th, 1862. Read More

    13 Dec 1862

    Participated in the Battle of Fredericksburg at Fredericksburg, Virginia.

    The Battle of Fredericksburg
    The Battle of Fredericksburg

    In early November, Maj. Gen. Ambrose E. Burnside took command of the Army of the Potomac, and made immediate plans to move the army once again toward Richmond. Read More

    17 Mar 1863

    New York 105th Infantry mustered out at New York.