My great great grandfather Isom Leonidas Ferguson. ( Born March 28, 1829 or March 29, 1831 Chester, South Carolina, USA to Robert Ira Ferguson (1803-1880) and Rachael Thompson. (1805-1836). Married Jane Elizabeth Lee (1836-1912) also of Chester, SC. Various sources say he was killed at Manassas or another civil war battle. Does not show up in Census with his family from 1870 on. We have some Civil War records and pension records that are unclear. Looks like he might have been disabled? A date of enlistment might really help. He was in TN with his family in 1860 and could have joined military from there rather than SC. I knew my grandmother well for many years and she was family historian. She never said her grandfather (mother’s father) was killed in the war! And she would have made a big deal about that if it were so. Also her mother Florence Ida Ferguson was born in 1868 after the war and he’s listed as her father on everything. No evidence wife Lizzie ever remarried. Help!!! Thanks in advance.