- There is a "C.S. Fayssoux" listed as a private in the 17th Regiment of the 17th Regiment of the South Carolina Infantry; and a "Clement S. Fayssoux" listed as a Captain of the 1st Regiment, 3rd Brigade, 1st Division, Louisiana Militia. He is included on the Civil War page.
Fayssoux, Clement S.,Capt. Co. B, 1st Regt. 3rd Brig. 1st Div. La. Mil. Appears on List not dated, previous commission, June 6, 1861. Date of Oath, Feb. 26, 1862. Appears on Roll for March 5, 1862, to —, ordered into the service of the State of Louisiana.
By the date, I'd guess he died in the War.