The 15th Pennsylvania Cavalry lost 3 officers and 22 enlisted men killed and mortally wounded and 103 enlisted men to disease during the Civil War.

1862
July to October Organized at Carlisle, Pa.
September 6-24 Attached to Cavalry Division, Army of the Potomac. Engaged in scout and picket duty near Chambersburg, Pa., during Maryland Campaign.
September 6-15 Detachment moved to Greencastle, then to Hagerstown, Md.
September 12-13 Skirmish near Hagerstown
September 15 Hagerstown
September 16-17 Advance to Jones’ Cross Roads and scouting during battle of Antietam, Md.
September 20-21 Led advance of Pennsylvania Militia to Williamsport
November 7 Regiment left State for Louisville, Ky.
December 8 Moved to Nashville, Tenn. and attached to Army of the Cumberland
December Attached to Reserve, Cavalry Brigade, Army of the Cumberland
December 25 Skirmish on Hillsboro Pike, near Nashville, Tenn.
December 26-30 Advance on Murfreesboro
December 26-27 Nolensville
December 27 Triune
December 29 Wilkinson’s Cross Roads
December 30 Lavergne
December 30-31 Battle of Stone’s River
1863
January 1-3 Battle of Stone’s River
January 4 Scout to Woodbury
January 5 Lytle’s Creek
January-June At Murfreesboro
March Attached to Cavalry Corps, Army of the Cumberland
April 4 Scout to Woodbury
April 5-6 Near Woodbury
April 7 At the Barrens
Companies B, H & K at Dept. Headquarters.
June 22-July 7 Middle Tennessee or Tullahoma Campaign. Attache to Headquarters Army of the Cumberland
June 24 Near Rover
June 24 Detachment of Regiment on duty at Headquarters Army of the Cumberland until December of 1864, participating in the Atlanta and Nashville Campaigns
August 1 Winchester
August 16-September 22 Passage of Cumberland Mountains and Tennessee River, and Chickamauga Campaign
September 19-21 Battle of Chickamauga
October Duty in Sequatchie Valley attached to Cavalry, Dept. of the Cumberland
October 2 Near Dunlap
October 26 Sequatchie Valley
November 28-December 8 March to relief of Knoxville
December 10 Gatlinsburg
December 13 Near Dandridge Mills
December 14 Near Morristown
December 22-23 Near Dandridge
December 24 Dandridge
December 29 Mossy Creek, Talbot Station
1864
January 10-11 Scout from Dandridge to Clark’s Ferry
January 14 Schultz’s Mill, Cosby Creek (Detachment)
January 22 Near Wilsonville (Detachment)
January 28 Indian Creek
January 28-29 Fair Garden
January 28 Fain’s Island
January 31-February 7 Expedition from Marysville to Quallatown. N. C.
February 5 Quallatown
February 12 At Chattanooga, Tenn.
February 22-27 Demonstration on Dalton, Ga.
February 23-25 Tunnel Hill, Buzzard’s Roost Gap and Rocky Faced Ridge
March-April Scouting
May 4 Ordered to Nashville, Tenn. and duty there attached to Post and District of Nashville, Dept. of the Cumberland
September 20-October 17 Gillem’s Expedition from East Tennessee toward Southwest Virginia
September 29 Jonesboro and Watauga River
October 7 Kingsport
October 8 Rogersville
October-November Scouting about Chattanooga
November Attached to 3rd Brigade, 6th Division, Cavalry Corps, Military Division Mississippi
December 13 Dalton
December 20 to January 6 Pursuit of Hood’s forces and trains
December 28 Near Decatur, Ala.
December 29 Pond Springs
December 30 Near Leighton
December 31 Russellville
1865
January 2 Nauvoo, Ala.
January 3 Thorn Hill
January 5 Near Mr. Hope
January 13-16 Pursuit of Lyon
January 14 Red Hill
January 15 Warrenton
January 26 Paint Rock
March 21-April 25 Stoneman’s Raid into Southwest Virginia and Western North Carolina. Attached to 1st Brigade, Cavalry Division, District East Tennessee, Dept. Cumberland
March 26-April 6 Demonstration on Virginia & Tennessee Railroad to near Lynchburg, Va. (Detachment under Major Wagner)
March 29 Yadkin River
April 1 Boone, N. C.
April 3 Hillsville and Wytheville, Va.
April 8 New London, Va.
April 8 Martinsville
April 11 Near Greensboro
April 12 Capture of Saulsbury
April 19 Jamestown, N. C.
April 22 Howard’s Gap, Blue Ridge Mountains
May Pursuit of Jeff Davis
June 21 Regiment except for Company A mustered out at Nashville, Tenn.
July 18 Company A mustered out