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A nice image of Captain John S. Foster of 4th Independent Ohio Cavalry.  Foster was commisioned in July 1861 and mustered out in July 1864.  Written in period ink on the front of the carte is "John S. Foster - Captain 4th Ind. O.C. - Georgetown, Ohio".  There is no backmark.

 

4th Independent Cavalry Company. Organized at Georgetown, Ohio, July 9, 1861. Moved to Camp Chase, Ohio, July 10, thence to St. Louis, Mo., August 19-21. Provost duty there till September, and at Syracuse, Mo., till October. Attached to Gen. Pope's Command, Army of the West. Fremont's advance on Springfield, Mo., October 21-November 7. Scouting and skirmishing in Western and Northern Missouri till February, 1862. Skirmish at Roan's Tan Yard, Silver Creek, January 8. 1862. Moved to Benton Barracks, Mo., February, 1862; thence to St. Louis, and duty at Headquarters of Gen. Halleck till April 9. Moved to Pittsburg Landing, Tenn., as escort to Gen. Halleck, and duty at Dept. Headquarters till August. Advance on and siege of Corinth, Miss., April 29-May 30. Pursuit to Booneville May 31-June 12. Scout duty in Western Tennessee, attached to the Commands of Gen. McClernand, Logan and Lawler, till November. Actions at Bolivar, Tenn., August 22; Greenville August 23; Bolivar August 25; Britton's Lane, near Denmark September 1. Grant's Central Mississippi Campaign November- December. Assigned to duty as escort to Gen. J. B. McPherson, Commanding 17th Army Corps, Army of the Tennessee, December, 1862, to April, 1864, and as escort to Gen. McPherson, Commanding Army of the Tennessee, to July, 1864, then as escort to Headquarters 17th Army Corps to May, 1865, participating in the movement to Young's Point and Milliken's Bend, La., and operations against Vicksburg, Miss., February to July, 1863. Movement on Bruinsburg and turning Grand Gulf April 25-30. Battles of Port Gibson May 1; North Fork, Bayou Pierrie, May 3; Willow Springs May 3; Utica May 9-10; Raymond May 12; Jackson May 14; Champion's Hill May 16. Siege of Vicksburg May 18-July 4. Meridian Campaign February 3-March 2, 1864. Champion's Hill February 4. Atlanta (Ga.) Campaign May to September. Demonstrations on Resaca May 8-13. Battle of Resaca. Battles about Dallas May 25-June 5. Operations about Marietta and against Kenesaw Mountain June 10-July 2. Assault on Kenesaw June 27. Nickajack Creek July 2-5. Chattahoochie River July 5-17. Battle of Atlanta July 22, Siege of Atlanta July 22-August 25. Operations against Hood in North Georgia and North Alabama September 29-November 3. March to the sea November 15-December 10. Siege of Savannah December 10-21. Campaign of the Carolinas January to April, 1865. Mt. Elon, S.C., February 27. Battle of Bentonville, N. C., March 20-21. Occupation of Goldsboro and Raleigh. Bennett's House April 26. Surrender of Johnston and his army. March to Washington, D.C., via Richmond, Va., April 29-May 20. Grand Review May 24. Old members mustered out July 16, 1864. Company mustered out May 28, 1865. Company lost during service 5 Enlisted men killed and mortally wounded and 16 Enlisted men by disease. Total 21.