Sorry you couldn't get my email to work for you. It is all lower case but I will type in caps SOUTHERNMAL@YAHOO.COM.
No I have never been able to find any more info on Curtis Culwell. Just the 1850 census. I do have information on Martha Turner Culwell/Cardwell. It appears from family members that Martha called herself Martha Jenny married apparently the son and when he died she married his father her father-in-law. This upset Turner and Cardwell family members since Mary Etta Turner daughter of John D and Julia Turner married James Cardwell.