My husband and son are direct descendants of Elias Henry Tillinghast and Carolina Louisa Emma Bellotte. I had not heard that Elias died in the war, only that he died in Macon, Ga. I'll see what else I can learn.
You have Elias' father listed as Daniel Hendren Tillinghast, but I have him as Daniel Henry. I've seen it both ways on a number of family trees.
I learned from looking at documents online that Daniel was surveyor general of South Carolina.
I also bought the book "Columbia & Richland County," which has a short entry about Daniel's father, Henry Hendren Tillinghast, a doctor who was one of the capital city's early settlers.