Osborne Jeffries was a private in Co. I, 1st MS Light Artillery. You can order his military service records from the link at the top of this page. For a capsule (brief) history of this unit, please see http://mississippiscv.org/MS_Units/1st_mississippi_light_artillery.htm. Co. I was "Bowman's Battery," raised in Yazoo County, MS, which is near Vicksburg. Hope this helps! -- Jim Huffman, Gainesville Vols