Thank you for replying! I gathered as much information as I could back in 07-08 when I was working on this, and I may have some files that interest you. I live in Spartanburg and the local library is a wonderful resource for genealogy research.
The only children I was aware of btw Mary and Taylor were: Luther Madison, Thomas D., Roy L., Martha Mae, Pearl, James Ravenel, and Grady Eugene. I have Otis as being the only child btw Annie and Taylor.
Attached are images of files that I scanned relating to Taylor, Martha and Mary. I hope this is helpful! A.