Cozad, William

Civil War Veteran

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Military Service: Private, 100th Regiment, Company D, Pennsylvania Infantry

Regimental History, 100th Pennsylvania Infantry

Overview: Organized at Pittsburg August 31, 1861. Left State for Washington, D. C., September 2, and duty there till October 9. Moved to Annapolis, Md., October 9. Attached to Stevens' 2nd Brigade, Sherman's South Carolina Expedition, to April, 1862. 2nd Brigade, 2nd Division, Dept. of the South, to July, 1862. 2nd Brigade, 1st Division, 9th Army Corps, Army Potomac, to September, 1862. 3rd Brigade, 1st Division, 9th Army Corps, to April, 1863. 3rd Brigade, 1st Division, 9th Army Corps, Dept. Ohio, to June, 1863. Army of the Tennessee, to August, 1863, and Army Ohio, to March, 1864. 2nd Brigade, 1st Division, 9th Army Corps, Army Potomac, to June, 1864. 1st Brigade, 1st Division, 9th Army Corps, to September, 1864. 3rd Brigade, 1st Division, 9th Army Corps, to July, 1865.

Service:Sherman's Expedition to Port Royal Harbor, S. C., October 21-November 7, 1861. Capture of Forts Walker and Beauregard, Port Royal Harbor, November 7. Occupation of Beaufort, S. C., December 8, and duty there till June, 1862. Port Royal Ferry, Coosa River, January 1. Operations on James Island, S. C., June 1-28. Legaire's Point, James Island, June 3. Skirmishes on James Island June 3-4. Battle of Secessionville, James Island, June 16. Evacuation of James Island and movement to Hilton Head, S. C., June 28-July 7. Moved to Newport News, Va., July 12-17, thence to Fredericksburg August 4-6. Operations in support of Pope August 6-16. Pope's Campaign in Northern Virginia August 16-September 2. Battles of Groveton August 29; Bull Run August 30; Chantilly September 1. Maryland Campaign September 6-24. Battles of South Mountain September 14 and Antietam September 16-17. March up the Potomac to Leesburg, thence to Falmouth October 11-November 18. Battle of Fredericksburg December 12-15. Burnside's 2nd Campaign, "Mud March," January 20-24, 1863. Moved to Newport News, Va., February 13, thence to Covington, Ky., March 20-28. Duty in District of Kentucky. At Paris, Nicholasville, Lancaster, Stanford and Somerset till June. Movement through Kentucky to Cairo, Ill., June 4-10, thence to Vicksburg, Miss., June 14-17. Siege of Vicksburg June 17-July 4. Advance on Jackson, Miss., July 5-10. Siege of Jackson July 10-17. Duty at Milldale till August 6. Moved to Covington, Ky., thence to Crab Orchard, Ky., August 6-18. March to Knoxville, Tenn., September 10-26, and duty there till October 3. Action at Blue Springs October 10. Knoxville Campaign November 4-December 23. Campbell Station November 16. Siege of Knoxville November 17-December 4. Repulse of Longstreet's assault on Fort Saunders November 29. Pursuit of Lengstreet December 5-24. At Blaln's Cross Roads till January, 1864. Veterans marched over Cumberland Mountains to Nicholasville, Ky., January, and on furlough till March. Ordered to Annapolis, Md., and duty there till April. Rapidan Campaign May 4-June 12. Battles of the Wilderness May 5-7; Spottsylvania May 8-12; Ny River May 10; Spottsylvania C. H. May 12-21. Assault on the Salient May 12. North Anna River May 12-21. Ox Ford May 24. Line of the Pamunkey May 26-28. Totopotomoy May 28-31. Cold Harbor June 1-12. Bethesda Church June 1-3. Before Petersburg June 16-18. Siege of Petersburg June 16, 1864, to April 2, 1865. Mine Explosion, Petersburg, July 30, 1864. Weldon Railroad August 18-21. Poplar Springs Church September 29-October 2. Reconnoissance on Vaughan and Squirrel Level Road November 8. Boydton Plank Road, Hatcher's Run, October 27-28. Fort Stedman March 25, 1865. Appomattox Campaign March 28-April 9. Assault on and fall of Petersburg April 2. Occupation of Petersburg April 3. Pursuit of Lee April 3-8. Moved to Washington, D. C., April 21-28, and duty there till July. Grand Review May 23. Mustered out July 24, 1865.

Regiment lost during service 16 Officers and 208 Enlisted men killed and mortally wounded and 2 Officers and 183 Enlisted men by disease. Total 409.