UNION PENNSYLVANIA VOLUNTEERS
90th Regiment, Pennsylvania Infantry
Organized at Philadelphia October 1, 1861. Moved to Baltimore, Md., March 31, 1862, thence to Washington, D. C., April 21 and to Aquia Creek Landing, Va., and duty there till May 9. Attached to 1st Brigade, 2nd Division, Dept. of the Rappahannock, to June, 1862. 2nd Brigade, 2nd Division, 3rd Corps, Army of Virginia, to September, 1862. 2nd Brigade, 2nd Division, 1st Army Corps, Army Potomac, to March, 1864. 2nd Brigade, 2nd Division, 5th Army Corps, to May, 1864. 1st Brigade, 2nd Division, 5th Army Corps, to June, 1864. 1st Brigade, 3rd Division, 5th Army Corps, to September, 1864. 2nd Brigade, 3rd Division, 5th Army Corps, to November, 1864.
- Duty near Fredericksburg, Va., till May 25. Expedition to Front Royal to intercept Jackson May 25-June 16. Duty at Manassas, Warrenton and Culpeper till August. Battle of Cedar Mountain August 9. Pope's Campaign in Northern Virginia August 16-September 2. Fords of the Rappahannock August 21-23. Thoroughfare Gap August 28. Battle of Bull Run August 30. Chantilly September 1. Maryland Campaign September 6-24. Battles of South Mountain September 14. Antietam September 16-17. Duty near Sharpsburg, Md., till October 30. Movement to Falmouth, Va., October 30-November 19. Battle of Fredericksburg December 12-15. Burnside's 2nd Campaign, "Mud March," January 20-24, 1863. At Falmouth and Belle Plains till April 27. Chancellorsville Campaign April 27-May 6. Operations at Pollock's Mill Creek April 29-May 2. Fitzhugh's Crossing April 29-30. Chancellorsville May 2-5. Gettysburg (Pa.) Campaign June 11-July 24. Battle of Gettysburg July 1-3. Pursuit of Lee July 5-24. Duty on line of the Rappahannock till October. Bristoe Campaign October 9-22. Advance to line of the Rappahannock November 7-8. Mine Run Campaign November 26-December 2. Demonstration on the Rapidan February 6-7, 1864. Duty on Orange & Alexandria Railroad till May. Rapidan Campaign May 4-June 12. Battles of the Wilderness May 5-7; Laurel Hill May 8; Spottsylvania May 8-12; Spottsylvania C. H. May 12-21. Assault on the Salient May 12. North Anna River May 23-26. Jericho Ford May 25. On line of the Pamunkey May 26-28. Totopotomoy May 28-31. Cold Harbor June 1-12. Bethesda Church June 1-3. White Oak Swamp June 13. Before Petersburg June 16-18. Siege of Petersburg June 16 to November 26, 1864. Mine Explosion, Petersburg, July 30. Weldon Railroad August 18-21. Reconnoissance to Dinwiddie C. H. September 15. Consolidated with 11th Pennsylvania Infantry November 26, 1864.
Regiment lost during service 5 Officers and 98 Enlisted men killed and mortally wounded and 1 Officer and 126 Enlisted men by disease. Total 230.
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