Pennsylvania – Organization and Mustering (1861–1863)

In Harrisburg, David Thompson and John Updegrove were mustered into Company H (“Warren Guards”). Adam R organized Company L as an independent unit at Camp Cameron. Alex F Thompson mustered into Company G of the 7th PA Cavalry. William Thompson joined the regiment as it was organized in Pottsville, including Company G. Alex T also joined Company F, 129th PA Infantry. Adam W joined Company H of the 130th PA Infantry under Col. Henry Zinn. John Wert entered with Company I at Camp Curtin. Alex T later served in Company E, 39th PA Militia during the Gettysburg emergency.

Washington DC Area – Early War Defenses (1861–1863)

David T and John U moved to Washington and camped at Tennallytown and Camp Pierpont. William T arrived from Pottsville, assigned to Slocum’s Brigade, Franklin’s Division. Adam Row’s Company L joined the 9th PA Cavalry. Adam Wert and Alex T were stationed in Washington for training and defense. John W and Solomon S U also arrived in Washington in preparation for movement. David T and John U returned to defensive duty around Alexandria in early 1863.

Maryland Operations (1861–1863)

Adam R was stationed in Baltimore on garrison duty. Adam W and William T marched through Rockville during the Maryland Campaign. William T engaged at Crampton’s Pass and Antietam, fighting near the center line. Adam W fought at the Sunken Road, and David T at Turner’s Gap. Solomon S Updegrove (cousin) and John U later pursued Confederate forces through Manassas Gap. Solomon S U also engaged at Monterey Gap, Hagerstown, and Boonsboro. John W was ordered to MD Heights and later stationed in Funkstown. Winter operations included Winchester and Pleasant Valley, where Company E camped and patrolled.

Kentucky/Indiana/Tennessee Operations (1861–1863)

Adam R’s unit moved via Louisville to Jeffersonville, then separated into battalions across Grayson Springs, Calhoun, and Bacon Creek. He operated in Springfield, Clarksville, Gallatin, and engaged Morgan’s cavalry at Lebanon and Spring Creek. His Company L later fought at Tompkinsville, Burkesville, and patrolled central Kentucky. Adam R covered the retreat at Richmond, and skirmished at Perryville. In Louisville, his regiment was placed under the Department of the Ohio. Alex T’s 7th PA Cavalry moved to Nashville, advanced to Murfreesboro, and fought at Stones River, Hoover’s Gap, and later at Chattanooga.

Virginia – Early Peninsula & Northern Virginia Campaigns; Seven Days Battles & Second Bull Run Campaign (1861–1862)

David T and John U conducted reconnaissance at Gunnell’s Mills, then fought at Dranesville. They joined William T in Manassas and Falmouth during McClellan’s campaign. They took part in the siege at Yorktown and actions at West Point. David T and John U advanced to White House Landing, then fought at Mechanicsville, Gaines’ Mill, Glendale, and Malvern Hill, supporting artillery. William T participated in all major Seven Days engagements. Afterward, the unit encamped at Harrison’s Landing. William T redeployed from Fortress Monroe to Centreville, holding defenses before moving to Gainesville, Groveton, and Chantilly. David T and John U were heavily engaged in these actions, later covering the retreat to Fairfax.

Virginia – Fredericksburg Campaign, Suffolk, Southeastern Operations & Winter Quarters (1862–1863)

Adam W, William T, David T, and John U moved to Falmouth, preparing for the battle of Fredericksburg. All were engaged there; Adam W’s Company H suffered heavy losses. Alex T’s 129th PA also faced high casualties. Afterward, they returned to Falmouth for winter. William T was KIA and buried near Antietam. Adam W stayed in winter quarters. John U and Alex T took part in the failed “Mud March.” David T was no longer in service in 1862, his muster out hasn’t been located. John W was transferred to Suffolk, building defenses and clearing forests. He helped construct a fort at Deep Creek and conducted guard duty there for months. John U performed garrison duty in Alexandria during this time. Adam W and Alex T fought at Chancellorsville, where their units suffered severe casualties. Col. Zinn was killed. Adam W covered the withdrawal.

Pennsylvania – Gettysburg Campaign (1863-1864)

John U moved north to Gettysburg during the Confederate invasion. Solomon S U’s Company E fought at Hanover, then engaged cavalry near the Wheatfield and Round Top. Alex T’s militia unit helped defend the town. Solomon S U also skirmished at Hunterstown. Alex T, Adam W, and John W were mustered out in Harrisburg after their nine-month terms. The 39th PA Militia disbanded shortly after. John U mustered out after three years of service in Pittsburgh. On February 16, 1864, Daniel’s brother Solomon Updegrove enlisted.

Virginia – Fall 1863 Campaigns (1863) & Overland Campaign (1864)

John U fought in the Bristoe Campaign, captured trenches at Rappahannock Station, and took part in the Mine Run winter operations. John U engaged in brutal fighting at Wilderness, Spotsylvania, North Anna River, and Totopotomoy Creek.

West Virginia & Shenandoah Valley (1864–1865)

Solomon S U operated in the Shenandoah Valley, fought at Tom’s Brook and Cedar Creek, and was captured there. His Company E was later censured at Mount Jackson, returned to Winchester, and skirmished at Rude’s Hill and Waynesboro.

Georgia Operations, Sherman’s Campaigns & Consolidation (1863–1865)

Alex T fought at Chickamauga, endured months of action in the Atlanta Campaign, and joined Sherman’s March to the Sea, ending with engagements in Savannah and Macon. Solomon S U’s unit consolidated with the 22nd PA Cavalry to form the 3rd Provisional PA Cavalry, likely mustered out in Harrisburg. Alex T mustered out in Nashville. Adam R discharged Lexington, KY, and likely mustered out in Harrisburg, PA. In Waynesboro, GA, Daniel’s brother Solomon Updegrove was KIA on December 4, 1864.